CN104722493A - Series bi-axial baffle automatic adjusting coal powder sorting device with returned powder grinding function - Google Patents
Series bi-axial baffle automatic adjusting coal powder sorting device with returned powder grinding function Download PDFInfo
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- CN104722493A CN104722493A CN201510154862.4A CN201510154862A CN104722493A CN 104722493 A CN104722493 A CN 104722493A CN 201510154862 A CN201510154862 A CN 201510154862A CN 104722493 A CN104722493 A CN 104722493A
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- 239000000843 powder Substances 0.000 title claims abstract description 138
- 239000003245 coal Substances 0.000 title claims abstract description 74
- 238000000227 grinding Methods 0.000 title abstract description 7
- 238000003801 milling Methods 0.000 claims abstract description 20
- 239000002817 coal dust Substances 0.000 claims description 32
- 230000000903 blocking effect Effects 0.000 claims description 12
- 238000000926 separation method Methods 0.000 claims description 10
- 238000012423 maintenance Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 abstract description 12
- 238000010298 pulverizing process Methods 0.000 abstract description 3
- 239000004568 cement Substances 0.000 abstract 1
- 238000005272 metallurgy Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 7
- 238000007780 powder milling Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 230000002950 deficient Effects 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The invention provides a series bi-axial baffle automatic adjusting coal powder sorting device with the returned powder grinding function. An inner barrel is arranged between a shell and an inner cone. A sorting channel and a powder return channel are arranged. The upper end of the inner barrel is provided with a powder return channel inlet, and a powder return channel outlet is formed in the lower end of the inner barrel. A powder return amount control device is fixedly arranged between the inner barrel and the shell. A grinding device is arranged below the powder return amount control device, and after returned powder is ground through the grinding device, the returned powder enters the sorting channel again through the returned powder channel outlet. The rotating strength of an air and powder mixture in the sorting channel is automatically adjusted through baffles, qualified coal powder is sorted out, disqualified coal powder enters the powder return channel in the device, under the condition that no coal pulverizing system is additionally arranged, the output and sorting efficiency of a coal mill are greatly improved, the coal milling unit consumption of the coal pulverizing system is greatly reduced, and the purposes of energy saving and emission reduction are achieved. The series bi-axial baffle automatic adjusting coal powder sorting device can also be applied to cement, metallurgy, petrochemical industries and the like.
Description
Technical field
The present invention relates to gas-particle two-phase fluid sorting machinery, be specifically a kind of take back series connection that powder mills biaxially baffle plate automatically regulate coal dust sorting unit.
Background technology
In recent years, due to coal market price change, heat power plant boiler burning coal not only comparatively designing coal quality differ greatly, and coal varitation is frequent, little time large when causing same load boiler fired coal amount, and then causing pulverized coal preparation system to exert oneself wretched insufficiency, fineness of pulverized coal is thicker, has a strong impact on security and economy that generating plant pulverized coal boiler runs.Exert oneself to improve pulverized coal preparation system, reduce low speed coal mill unit power consumption of coal pulverizing, various coal dust sorting technology arises at the historic moment.In various different coal dust sorting technology, series double-axial separator for meal because of its resistance little, the efficiency of separation is high, obtains in actual applications and widelys popularize.But it also also exists the problems such as the easy bite of baffle plate, easily accumulated powder; Constantly perfect along with Dynamic Separation technology, fineness of pulverized coal adjustable extent is large, pulverized coal fineness index advantages of higher because it has for dynamic separator, be widely used in medium-speed pulverizer, meanwhile, Dynamic Separation technology also starts to be applied to low speed coal mill the ball type pulverizer system.But when dynamic separator also also exists and grinds ature of coal variation, fineness of pulverized coal is thinner, makes circulating ratio increase, and separative efficiency reduces, the problems such as resistance increase, thus limits the development of Dynamic Separation technology.
Because as-fired coal matter changes greatly, boiler fired coal amount is caused significantly to change, when as-fired coal qualitative change difference, boiler fired coal amount increases substantially, unit load demand could be met, therefore, need to increase substantially pulverizer capacity, if fineness of pulverized coal is constant, return powder amount must increase considerably, a large amount of powder that returns circulates between sorting unit and coal pulverizer, not only consumes energy, flog a dead horse, and coal pulverizer resistance can be caused to rise, thus limit the raising of pulverizer capacity, therefore, when meeting boiler to fineness of pulverized coal requirement, reduce coal pulverizer Hui Fenliang, improve pulverizer capacity and the efficiency of separation significant to large coal powder boiler energy saving and efficiency increasing.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of take back series connection that powder mills biaxially baffle plate automatically regulate coal dust sorting unit, baffle plate is utilized automatically to regulate wind powder mixture at the spin intensity of sort channel, sub-elect qualified coal dust, simultaneously, defective coal dust (returning powder) enters back in powder passage, whole time powder process completes in sorting unit inside, make when not increasing pulverized coal preparation system equipment, pulverizer capacity and the efficiency of separation are increased substantially, considerably reduce pulverized coal preparation system coal-grinding unit consumption simultaneously, realize the object of energy-saving and emission-reduction.
Described take back series connection that powder mills biaxially baffle plate automatically regulate coal dust sorting unit, comprise and outwards to be set gradually by device center: coal spout, the inner cone that center is passed by described coal spout, and outermost housing, the upper surface of described sorting unit is provided with the cover plate passed by described coal spout at center, on described cover plate or the outside of housing upper is fixed with primary air piping, the sort channel being communicated with described primary air piping is formed between housing with inner cone, bottom in described inner cone is provided with the cone cap be connected with coal spout, the bottom opening of inner cone, the lower surface opening of described housing, and be fixed with and export with the coal pulverizer of below the flange docked, it is characterized in that:
The inner barrel of tubular is provided with between described housing and described inner cone, the circular passage between housing and inner cone is made to be split into the sort channel of going back to powder passage and inner side in outside, powder feeder connection is provided with back between the upper end of described inner barrel and described cover plate, be provided with back powder channel outlet between the lower end of inner barrel and housing, in time powder passage, be also fixedly installed one or more groups time powder amount control device; Sundries blocking net is provided with at described time powder feeder connection;
Returning in powder passage below described time powder amount control device is provided with one or more groups milling device, described milling device is driven by the drive unit of milling be arranged at outside housing, makes again to enter sort channel through the Hui Fenke of described milling device from described time powder channel outlet.
Typically, one week subordinate's baffle plate and one week higher level's baffle plate is provided with in described sort channel; The aperture of described subordinate baffle plate and higher level's baffle plate independently controls separately.
A kind of prioritization scheme, the damper shaft of described higher level's baffle plate passes the sidewall of inner barrel and housing, the damper shaft of described subordinate baffle plate passes the sidewall of inner barrel and housing, described damper shaft is fixed by bearing and bearing holder (housing, cover) and housing housing is outer, adjusting rod is set with in the outer end of described damper shaft, two oscillating bearings adjusting rod described in each are at least equipped with, adjacent adjusting rod is by respective oscillating bearing or be interconnected by oscillating bearing and connecting rod, making the adjusting rod of a week close serial connection is an adjusting ring, and described adjusting ring is driven by executing agency; Gap is left between the other end and described inner cone of described higher level's baffle plate and described subordinate baffle plate.
Wherein, described bearing holder (housing, cover) fixes one piece and the vertically disposed dial of damper shaft, for identifying with the baffle opening of adjusting rod instruction.
Described inner cone integrally closed cavity, inner cone top is connected with coal spout by cover plate, is connected in the middle part of inner cone by cone cap with coal spout.
Optimally, at top and the housing of described inner barrel, or sundries blocking net is provided with between the top of inner barrel and cover plate; The housing of described sundries blocking net correspondence position is provided with maintenance window.
Return in powder passage described in below described milling device and be provided with channel separation device.
Be provided with in described sort channel and the multiple powder retrieving pipes be communicated with bottom inner cone, arrival end and time powder channel connection of described powder retrieving pipe, be located on the described described inner barrel returned above powder amount control device.
The circular passage of the present invention between inner cone and housing arranges inner barrel, this circular passage is divided into back powder passage and sort channel, in sort channel, upper and lower two-stage baffle plate is set, baffle plate is utilized automatically to regulate the spin intensity of wind powder mixture, sub-elect qualified coal dust, reduce sorting unit resistance, powder passage is provided with back between inner barrel and shell, the spin intensity utilizing baffle plate automatically to regulate wind powder mixture, sub-elect qualified coal dust, defective coal dust enters back in powder passage, and in time powder passage, be provided with back powder amount control device and return powder milling device, controlling and refinement processing returning milling of powder, making part return powder and becoming qualified coal dust, return powder after returning the processing of powder milling device, sort channel is entered by returning powder channel outlet, sorting is carried out together with the wind powder mixture from coal pulverizer, qualified coal dust after time powder milling device is milled and the qualified coal dust from coal pulverizer are after sorting unit sorting, hearth combustion is entered through primary air piping, therefore, return powder milling device and part time powder is milled into qualified coal dust, not only increase pulverizer capacity and pulverized coal fineness index, be conducive to reducing fly ash combustible material, improve boiler efficiency, and decrease because a large amount of powder that return circulate the energy consumed, therefore, this invention is a very potential energy-conserving and emission-cutting technology, when maintaining fineness of pulverized coal and being substantially constant, pulverizer capacity can be increased substantially, reduce coal-grinding unit consumption and fly ash combustible material, and then raising boiler efficiency, reach the object of energy-saving and emission-reduction.
Take back series connection that powder mills the biaxially baffle plate safety and reliability that automatically regulates coal dust sorting unit to run to improve, the present invention is provided with sundries blocking net returning powder feeder connection, avoids foreign material to enter back powder passage, affects the reliability of device; Simultaneously, return in powder passage described in above described time powder amount control device and be provided with and the multiple powder retrieving pipes be communicated with bottom inner cone, when milling device is because of fault operation suspension, open powder retrieving pipe adjustment doors, return powder to can be passed through powder retrieving pipe and enter coal pulverizer and mill, avoid affecting coal pulverizer and obtain and normally run.
Accompanying drawing explanation
Fig. 1 is overall structure longitudinal section of the present invention sectional view,
Fig. 2 is sorting unit plan structure figure,
Fig. 3 is that baffle plate governor motion outboard structure launches schematic diagram.
In figure: 1-coal spout, 2-primary air piping, 3-cover plate, 4-inner cone, 5-housing, 6-higher level baffle plate, 7-damper shaft, 8-adjusting rod, 9-return powder amount control device, 10-cone cap, 11-channel separation device, 12-subordinate baffle plate, 13-bearing holder (housing, cover), 14-powder retrieving pipe exports, 15-sorting unit entrance, 16-return powder outlet, 17-inner barrel, 18-baffle plate bearing, 19-return powder passage, 20-powder retrieving pipe, 21-sort channel, 22-drive unit of milling, 24-explosion proof door, 25-oscillating bearing, 26-connecting rod, 27-dial, 28-executing agency, 29-sundries blocking net, 30-maintenance window, 31-flange, 32-milling device, 33-return powder channel outlet.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further described: as shown in Figure 1, described take back series connection that powder mills biaxially baffle plate automatically regulate coal dust sorting unit, comprise and outwards being set gradually by device center: coal spout 1, the inner cone 4 that center is passed by described coal spout, and outermost housing 5, the upper surface of described sorting unit is provided with the cover plate 3 passed by described coal spout at center, on described cover plate or housing upper extenal fixation be provided with primary air piping 2, the sort channel 21 being from bottom to top communicated with described primary air piping is formed between housing with inner cone, bottom in described inner cone is provided with the cone cap 10 be connected with coal spout, from the wind powder mixture of coal pulverizer along sort channel 21 spiral, automatically the spin intensity of wind powder mixture is regulated through baffle plate, qualified coal dust enters burner hearth through primary air piping 2 and burns, defective coal dust enters back powder passage 19 through returning powder passage 19 entrance, by returning powder amount control device 9, after returning powder milling device 32 processing, again entering sort channel 21 by returning powder channel outlet 33, carrying out sorting again.
Described inner cone is the cavity of integrally closed, inner cone is made up of top cone, middle cylinder and bottom cone, top cone top is fixedly connected with coal spout by cover plate, middle cylinder is fixedly connected with top cone, middle cylinder sidewall and baffle plate leave certain interval, be provided with the cone cap 10 be connected with coal spout in the cone of bottom, make inner cone form the cavity of an autonomous closure.Return be provided with one or more powder retrieving pipe between powder passage and inner cone, powder retrieving pipe one end and time powder expanding channels returned on powder amount control device, through bottom the other end and inner cone, when returning powder overheap, too much returns powder by opening the powder retrieving pipe of adjustment doors, fall bottom inner cone, enter coal pulverizer and mill.
The bottom opening of inner cone, the lower surface opening of described housing, and be fixed with the flange 31 exporting with the coal pulverizer of below and dock.Described inner cone 4 bottom is provided with the cone cap 10 be connected with coal spout, and top is fixedly connected with coal spout by cover plate.
As Fig. 1,2, the inner barrel 17 of tubular is also provided with between the housing and described inner cone 4 of described sort channel, powder feeder connection is left back between the upper end of described inner barrel and described cover plate, powder channel outlet 33 is left back between the lower end of inner barrel and housing, make to retain sort channel 21 between described inner barrel 17 and inner cone, between described inner barrel and housing 5, isolate back powder passage 19.Go back to the periphery that powder passage 19 is arranged at sort channel 21, make use of the mechanism of centrifugal classification, on the one hand qualified coal dust is sent into primary air piping 2, meanwhile, utilize centrifugal force to send into back powder passage 19 defective coal dust.Centrifugal force stems from the spiral rotating updraught powder mixture below by powder selection device entrance 15, and spiral rotating updraught powder mixture regulates through upper and lower two-stage baffle opening, reaches the object changing fineness of pulverized coal.
As Fig. 1,3, the damper shaft 7 of described higher level's baffle plate 6 passes the sidewall of inner barrel and housing, the damper shaft 7 of described subordinate baffle plate 12 passes the sidewall of inner barrel and housing, subordinate's baffle plate 12 plays the guiding regulating action to the wind powder mixture that spiral rotating rises, higher level's baffle plate 6 is positioned at the throat of inner barrel and inner cone, the wind powder mixture speed that spiral rotating rises is high, regulates the baffle opening of higher level's baffle plate 6, can regulate fineness of pulverized coal and control wind powder mixture flow.Described damper shaft is fixed with housing by bearing 18 and bearing holder (housing, cover) 13 outside housing, adjusting rod 8 is set with in the outer end of described damper shaft, two oscillating bearings 25 adjusting rod described in each are at least equipped with, adjacent adjusting rod is interconnected by respective oscillating bearing or by oscillating bearing and connecting rod 26, making the adjusting rod of a week close serial connection is an adjusting ring, and described adjusting ring is driven by executing agency 28; Gap is left between the other end and described inner cone of described higher level's baffle plate 6 and described subordinate baffle plate 12.
Wherein, described bearing holder (housing, cover) 13 fixes one piece and the vertically disposed dial 27 of damper shaft 7, is used to indicate baffle opening.One week subordinate's baffle plate 12 and one week higher level's baffle plate 6 is provided with in described sort channel; The aperture of described subordinate baffle plate 12 and higher level's baffle plate 6 independently controls separately.
Oscillating bearing is used to automatically adjust to baffle plate, flexible adjustment, it is convenient, accurate to control, and reliable and stable, be another important feature of present design, when which improving the interlock of use steel wire rope, steel wire rope easily skids, come off, resistance is comparatively large, cause baffle plate action and aperture inconsistent, the problems such as power transmission efficiency is lower.
One week one or more groups time powder amount control device 9 is also fixedly installed between described inner barrel and housing.Return described in described time powder passage below powder amount control device 9 and be provided with one or more groups milling device 32, described milling device is driven by the drive unit 22 of milling be arranged at outside housing, makes to return powder channel outlet 33 described in the Hui Fencong through described milling device and again enters sort channel 21.Return powder amount control device 9 and regulation and control effect is played to the circulation of returning powder.Return the short distance that achieves back powder with succinct structure of powder passage mill and carry, not only increase pulverizer capacity and pulverized coal fineness index, and avoid the safety problem generation that time powder blocking, time powder blast etc. that are caused by inner cone because returning powder affect stable operation of unit.
Sorting unit filters out qualified coal dust utilizing centrifugal classification principle, simultaneously, defective coal dust enters back in powder passage, and powder amount control device is set back in time powder passage and returns powder milling device, control returning powder and mill, going back to the bottom of powder passage, be communicated with sorting unit entrance, the powder that returns after milling is made again to enter sort channel, whole time powder mill processes completes in sorting unit inside, make when not increasing pulverized coal preparation system equipment, pulverizer capacity and the efficiency of separation are increased substantially, considerably reduce pulverized coal preparation system coal-grinding unit consumption simultaneously, realize the object of energy-saving and emission-reduction.
Optimally, at top and the housing of described inner barrel, or sundries blocking net 29 is provided with between the top of inner barrel and cover plate; The housing of described sundries blocking net 29 correspondence position is provided with maintenance window 30.The foreign material such as the electric wire be mixed in coal dust, plastics, woven bag residue are tackled by sundries blocking net, can periodic cleaning foreign material by maintenance window.
Claims (8)
1. one kind take back series connection that powder mills biaxially baffle plate automatically regulate coal dust sorting unit, comprise and outwards being set gradually by device center: coal spout (1), the inner cone (4) that center is passed by described coal spout (1), and outermost housing (5), the upper surface of described sorting unit is provided with the cover plate (3) passed by described coal spout at center, on described cover plate or the outside of housing upper is fixed with primary air piping (2), the sort channel (21) being communicated with described primary air piping is formed between housing with inner cone, bottom in described inner cone is provided with the cone cap (10) be connected with coal spout, the bottom opening of inner cone, the lower surface opening of described housing, and be fixed with the flange (31) exporting with the coal pulverizer of below and dock, it is characterized in that:
The inner barrel (17) of tubular is provided with between described housing (5) and described inner cone (4), the circular passage between housing (5) and inner cone (4) is made to be split into the sort channel (21) of going back to powder passage (19) and inner side in outside, powder feeder connection is provided with back between the upper end of described inner barrel and described cover plate, be provided with back powder channel outlet (33) between the lower end of inner barrel and housing, in time powder passage, be also fixedly installed one or more groups time powder amount control device (9); Sundries blocking net (29) is provided with at described time powder feeder connection;
One or more groups milling device (32) is provided with returning in powder passage of described time powder amount control device (9) below, described milling device is driven by the drive unit of milling (22) be arranged at outside housing, makes again to enter sort channel (21) through the Hui Fenke of described milling device from described time powder channel outlet (33).
2. according to claim 1 take back series connection that powder mills biaxially baffle plate automatically regulate coal dust sorting unit, it is characterized in that: in described sort channel, be provided with one week subordinate's baffle plate (12) and one week higher level's baffle plate (6); The aperture of described subordinate baffle plate (12) and higher level's baffle plate (6) independently controls separately.
3. according to claim 2 take back series connection that powder mills biaxially baffle plate automatically regulate coal dust sorting unit, it is characterized in that: the damper shaft (7) of described higher level's baffle plate (6) is through the sidewall of inner barrel and housing, the damper shaft (7) of described subordinate baffle plate (12) is through the sidewall of inner barrel and housing, described damper shaft is fixed with housing by bearing (18) and bearing holder (housing, cover) (13) outward at housing, adjusting rod (8) is set with in the outer end of described damper shaft, two oscillating bearings (25) adjusting rod described in each are at least equipped with, adjacent adjusting rod is by respective oscillating bearing or be interconnected by oscillating bearing and connecting rod (26), making the adjusting rod of a week close serial connection is an adjusting ring, described adjusting ring is driven by executing agency (28), gap is left between the other end and described inner cone of described higher level's baffle plate (6) and described subordinate baffle plate (12).
4. according to claim 3 take back series connection that powder mills biaxially baffle plate automatically regulate coal dust sorting unit, it is characterized in that: described bearing holder (housing, cover) (13) fixes one piece and damper shaft (7) vertically disposed dial (27), for identifying with the baffle opening of adjusting rod instruction.
5. according to claim 1 take back series connection that powder mills biaxially baffle plate automatically regulate coal dust sorting unit, it is characterized in that: described inner cone (4) is integrally closed cavity, inner cone (4) top is fixedly connected with coal spout by cover plate, and inner cone (4) middle part is connected with coal spout by cone cap (10).
6. according to claim 1 take back series connection that powder mills biaxially baffle plate automatically regulate coal dust sorting unit, it is characterized in that: at top and the housing of described inner barrel, or between the top of inner barrel and cover plate, be provided with sundries blocking net (29); The housing of described sundries blocking net (29) correspondence position is provided with maintenance window (30).
7. according to claim 1 take back series connection that powder mills biaxially baffle plate automatically regulate coal dust sorting unit, it is characterized in that: return in powder passage described in below described milling device and be provided with channel separation device (11).
8. according to claim 1 take back series connection that powder mills biaxially baffle plate automatically regulate coal dust sorting unit, it is characterized in that: be provided with in described sort channel and the multiple powder retrieving pipes (20) be communicated with bottom inner cone, arrival end and time powder channel connection of described powder retrieving pipe, be located on the described described inner barrel returned above powder amount control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154862.4A CN104722493B (en) | 2015-04-02 | 2015-04-02 | Take back the series connection biaxially baffle plate that powder mills and be automatically adjusted coal dust sorting unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510154862.4A CN104722493B (en) | 2015-04-02 | 2015-04-02 | Take back the series connection biaxially baffle plate that powder mills and be automatically adjusted coal dust sorting unit |
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| Publication Number | Publication Date |
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| CN104722493A true CN104722493A (en) | 2015-06-24 |
| CN104722493B CN104722493B (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510154862.4A Active CN104722493B (en) | 2015-04-02 | 2015-04-02 | Take back the series connection biaxially baffle plate that powder mills and be automatically adjusted coal dust sorting unit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106540881A (en) * | 2016-10-20 | 2017-03-29 | 云南冶金新立钛业有限公司 | For the system for sorting particulate dust |
| CN108332230A (en) * | 2018-04-25 | 2018-07-27 | 国电科学技术研究院有限公司 | A kind of regulating device of tube cell wind powder speed |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10109045A (en) * | 1996-10-04 | 1998-04-28 | Babcock Hitachi Kk | Vertical roller mill |
| JP2007117825A (en) * | 2005-10-26 | 2007-05-17 | Ube Machinery Corporation Ltd | Classifier |
| CN202087529U (en) * | 2011-05-26 | 2011-12-28 | 张雪莲 | High-efficiency coarse powder separator |
| CN103846126A (en) * | 2012-11-30 | 2014-06-11 | 黄立娜 | Highly-efficient tandem biaxial dynamic sorting and recovery powder milling apparatus with automatically regulated baffle plates |
| CN204544754U (en) * | 2015-04-02 | 2015-08-12 | 黄立新 | Take back series connection that powder mills biaxially baffle plate automatically regulate coal dust sorting unit |
-
2015
- 2015-04-02 CN CN201510154862.4A patent/CN104722493B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10109045A (en) * | 1996-10-04 | 1998-04-28 | Babcock Hitachi Kk | Vertical roller mill |
| JP2007117825A (en) * | 2005-10-26 | 2007-05-17 | Ube Machinery Corporation Ltd | Classifier |
| CN202087529U (en) * | 2011-05-26 | 2011-12-28 | 张雪莲 | High-efficiency coarse powder separator |
| CN103846126A (en) * | 2012-11-30 | 2014-06-11 | 黄立娜 | Highly-efficient tandem biaxial dynamic sorting and recovery powder milling apparatus with automatically regulated baffle plates |
| CN204544754U (en) * | 2015-04-02 | 2015-08-12 | 黄立新 | Take back series connection that powder mills biaxially baffle plate automatically regulate coal dust sorting unit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106540881A (en) * | 2016-10-20 | 2017-03-29 | 云南冶金新立钛业有限公司 | For the system for sorting particulate dust |
| CN108332230A (en) * | 2018-04-25 | 2018-07-27 | 国电科学技术研究院有限公司 | A kind of regulating device of tube cell wind powder speed |
| CN108332230B (en) * | 2018-04-25 | 2024-03-29 | 国家能源集团科学技术研究院有限公司 | Powder pipe wind powder speed adjusting device |
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| Publication number | Publication date |
|---|---|
| CN104722493B (en) | 2016-08-24 |
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