CN203556411U - Coal grinding mill - Google Patents
Coal grinding mill Download PDFInfo
- Publication number
- CN203556411U CN203556411U CN201320657587.4U CN201320657587U CN203556411U CN 203556411 U CN203556411 U CN 203556411U CN 201320657587 U CN201320657587 U CN 201320657587U CN 203556411 U CN203556411 U CN 203556411U
- Authority
- CN
- China
- Prior art keywords
- coal
- separator
- mill bowl
- mill
- body device
- 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.)
- Expired - Lifetime
Links
- 239000003245 coal Substances 0.000 title claims abstract description 117
- 238000000227 grinding Methods 0.000 title claims abstract description 46
- 239000000843 powder Substances 0.000 claims abstract description 6
- 230000009467 reduction Effects 0.000 claims description 18
- 241001125879 Gobio Species 0.000 claims description 16
- 239000002817 coal dust Substances 0.000 claims description 15
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 3
- 238000007790 scraping Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 6
- 230000007547 defect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000003801 milling Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a coal grinding mill. The coal grinding mill comprises a side machine body device, wherein a grinding bowl and an impeller device are arranged in an inner cavity of the side machine body device; the top of the side machine body device is fixedly connected with a separator body device; a plurality of sets of grinding roller devices are distributed in an inner cavity of the separator body device and are arranged above the grinding bowl and the impeller device; the top of each grinding roller device is fixedly connected with a draw bar bolt; a hydraulic loading device is arranged at the upper part of each grinding roller device; a separator head over is fixedly arranged at the top of the separator body device; a rotor body is arranged in the inner cavity of the separator head cover, and achieves driving through a rotor drive device; a coal drop pipe is arranged at the center of the top of the separator head cover; at least one coal powder duct is arranged at the top of the separator head cover. By the adoption of the coal grinding mill, the advantages of an HP coal grinding mill and an SM coal grinding mill are mixed, the defects are abandoned, and the coal grinding mill is efficient and economical.
Description
Technical field
The utility model relates to a kind of coal pulverizer.
Background technology
On at present domestic and international medium-speed pulverizer market, more competitive coal pulverizer one is HP coal pulverizer, and another kind is SM coal pulverizer, and two kinds of coal pulverizers respectively have pluses and minuses.That the advantage of HP coal pulverizer is is simple in structure, operational reliability is high, maintenance is convenient, downtime is short and price comparison is low; Its shortcoming is that grinding efficiency is not high enough, and coal-air ratio is bigger than normal, and boiler efficiency can not be brought into play completely.The advantage of SM coal pulverizer is that grinding efficiency is high, and coal-air ratio is little, and coal powder density is high, and SM coal-grinding function guarantees that boiler brings into play more high efficiency; Its shortcoming is structure relative complex, and foundry goods is many, and flowing resistance is large, and price is relatively high.Therefore two kinds of coal pulverizers have certain room for improvement, but on market, also do not have both advantages concurrently and the new mill type of abandoning its shortcoming occurs.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of coal pulverizer, and it can have the advantage of HP coal pulverizer and SM coal pulverizer concurrently and abandon its shortcoming.
For solving the problems of the technologies described above, the technical solution of the utility model coal pulverizer is:
Comprise side body set 5, side body set 5 is directly seated on basis; The inner chamber of side body set 5 is provided with mill bowl and impeller unit 8; The top of side body set 5 is fixedly connected with separator body device 9; The inner chamber of separator body device 9 has been uniformly distributed circumferentially many cover Burnisher apparatus 4, and Burnisher apparatus 4 hangs in separator body device 9 by gudgeon 13 respectively, and Burnisher apparatus 4 can rotate up and down centered by gudgeon 13 in vertical plane; Burnisher apparatus 4 is positioned at the top of mill bowl and impeller unit 8; The working face of the grinding roller 41 of Burnisher apparatus 4 is the conical surface, and the working face of the mill bowl 81 of mill bowl and impeller unit 8 is inclined-plane; Between grinding roller 41 and mill bowl 81, be provided with gap; The top of Burnisher apparatus 4 is fixedly connected with one end of stay-bolt 12, and the other end of stay-bolt 12 stretches out the inner chamber of separator body device 9, and realizes and being fixedly connected with of separator body device 9 by pull-rod nut 121; Pull-rod nut 121 is arranged at the outside of separator body device 9; At coal pulverizer outside rotating rod nut 121, stay-bolt 12 is moved in the horizontal direction, thereby drive Burnisher apparatus 4 to rotate around gudgeon 13, realize the adjusting to gap length between grinding roller 41 and mill bowl 81; The top of Burnisher apparatus 4 is provided with hydraulic loading device 3; The loading force of hydraulic loading device 3 when providing coal pulverizer to mill; The top of separator body device 9 is fixedly installed separator top cover 10; The inner chamber of separator top cover 10 is provided with rotor block 2; Rotor block 2 is pyramidal structure, plays the effect that separates coal dust; Rotor block 2 is realized and being driven by rotor block drive unit 1; Rotor block drive unit 1 is belt transmission; The top center of separator top cover 10 is provided with coal spout 11, and coal spout 11 stretches into the inner chamber of separator body device 9; The top of separator top cover 10 is provided with at least one pulverized coal channel 15.
The shape α 1 that has angle between the central axis of described Burnisher apparatus 4 and horizontal plane; The shape α 2 that has angle between the faying face of described grinding roller 41 and mill bowl 81 and horizontal plane.
Described the first angle α 1 is 20 °～30 °; Described the second angle α 2 is 10 °～20 °.
Described mill bowl is connected planetary gear reduction box 6 with impeller unit 8, and planetary gear reduction box 6 is realized and being driven by main motor, drives mill bowl and impeller unit 8 to rotate; Planetary gear reduction box 6 is arranged at the bottom of side body set 5, and the bottom surface of side body set 5 is higher than the bottom surface absolute altitude of planetary gear reduction box 6.
The outer wall of described mill bowl and impeller unit 8 is fixedly installed screeding device 7, and screeding device 7 is for scraping the foreign material that fall into side body set 5 inner chambers.
Described separator top cover 10 is up big and down small structure, for retraining the flow direction of wind powder mixture, for coal dust effectively separates and provides passage to guarantee at rotor block 2 places.
Raw coal is after described coal spout 11 drops on mill bowl and impeller unit 8, by planetary gear reduction box 6, drive mill bowl and impeller unit 8 to rotate, raw coal radially moves outwardly under the effect of centrifugal force, on mill bowl and impeller unit 8, form one deck coal bed, coal bed passes through for 4 times at the Burnisher apparatus that can rotate around gudgeon 13; Coal bed produces a support force makes Burnisher apparatus 4 be rotated counterclockwise around gudgeon 13, hydraulic loading device 3 produces a loading force makes Burnisher apparatus 4 turn clockwise around gudgeon 13, thereby abrasive power is applied on coal bed by the grinding roller 41 rotating, and raw coal is ground into coal dust between grinding roller 41 and mill bowl 81; Do radially and inner chamber that circumferentially mobile raw coal is carrying the coal dust being broken and cross the outer rim of mill bowl 81 and enter separator body device 9; In the process of lapping of coal, less lighter coal particle is blown afloat from mill bowl 81 outer rims by the pumped (conveying) medium in cavity continuously; Pumped (conveying) medium rises along the outer rim of the mill bowl 81 of rotation, and the impeller that is arranged at the outer rim of mill bowl 81 makes air-flow be tending towards vertical direction; In mill bowl 81 outer rims, less lighter coal grain is carried upwards by air-flow, and the heavy external foreign material that are difficult for grinding fall into the inner chamber of side body set 5 through air-flow; Lighter coal grain is carried the rotor block 2 that enters rotation by separator body device 9 by air-flow, when air-flow approaches rotor block 2, coal grain in air-flow is because being subject to the shock of rotor block 2, larger coal grain will be dished out by rotor block 2, less coal grain is allowed through rotor block 2, and leaves separator top cover 10 and arrive pulverized coal channel 15; The coal grain of being dished out is back to mill bowl 81 and is re-ground; Through air-flow, fall into the external foreign material that are difficult for grinding of the inner chamber of side body set 5 and scraped in the hole on side body set 5 base plates by screeding device 7, then enter gathering system.
The technique effect that the utility model can reach is:
The utility model has been simplified the supporting mechanism of side body, replaces foundry goods with structural member, and the belt transmission low with process and assemble required precision replaces gear drive, thereby can reduce the manufacturing cost of coal pulverizer.
The utility model replaces caging bolt structure by stay-bolt structure, thereby the gap adjustment between the grinding roller that can make coal pulverizer and mill bowl is convenient.
Side body set of the present utility model is directly seated on basis, the bottom surface of side body set is higher than the bottom surface absolute altitude of planetary gear reduction box, difference in height between side body set and planetary gear reduction box bottom surface is made up by basis, having abandoned under the similar mill type side bodies such as SM coal pulverizer adopts support to be connected with basis, support bottom surface and reduction box bottom surface be at the labyrinth of same absolute altitude, thereby simplified the supporting mechanism of side body.
The utility model is arranged driving reductor between two pulverized coal channels, and drives rotor block to rotate by belt transmission, has abandoned the gear-driven form that the similar mill types such as SM coal pulverizer adopt.
The utility model drives rotor block by belt transmission, can reduce the requirement to the accuracy of gear when manufacturing and assembling, and has reduced manufacturing cost; During the on-the-spot operation of belt transmission simultaneously, will no longer need lubricating oil bath to carry out oilgear, and can effectively reduce maintenance difficulties and the maintenance cost of on-the-spot operation.
The utility model has improved the structure in the region of milling, in the constant situation of coal pulverizer barrel diameter, be arranged with three Burnisher apparatus, because the angle α 2 forming between the faying face of the angle α 1 forming between the central axis of Burnisher apparatus and horizontal plane and grinding roller and mill bowl and horizontal plane has determined the full-size of grinding roller, the maximum when full-size of grinding roller the has determined coal pulverizer work area of effectively milling; Angle α 1 and α 2 are reduced, can make the size of grinding roller effectively be amplified, to improve the coal pulverizer area of effectively milling in when work, thereby effectively improve the grinding efficiency of coal pulverizer.
The utility model is mixed the advantage of HP coal pulverizer and SM coal pulverizer, abandon its shortcoming, with respect to HP coal pulverizer, there is higher grinding efficiency, lower coal-air ratio, higher coal powder density, can bring into play boiler efficiency to a greater degree, simpler with respect to SM coal pulverizer structure, overhaul more conveniently, price is lower, is a kind of not only efficient but also economic coal pulverizer.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the schematic diagram of the utility model coal pulverizer;
Fig. 2 is the schematic diagram in the region of milling of the present utility model;
Fig. 3 is the schematic diagram that between grinding roller of the present utility model and mill bowl, gap is adjusted.
Description of reference numerals in figure:
1 is rotor block drive unit, and 2 is rotor block,
3 is hydraulic loading device, and 4 is Burnisher apparatus,
5 is side body set, and 6 is planetary gear reduction box,
7 is screeding device, and 8 is mill bowl and impeller unit,
9 is separator body device, and 10 is separator top cover,
11 is coal spout, and 12 is stay-bolt,
13 is gudgeon, and 14 for driving reductor,
15 is pulverized coal channel,
41 is grinding roller, and 81 is mill bowl,
121 is pull-rod nut.
The specific embodiment
As shown in Figure 1, the utility model coal pulverizer, comprises side body set 5, and side body set 5 is directly seated on basis;
The inner chamber of side body set 5 is provided with mill bowl and impeller unit 8; Mill bowl is connected planetary gear reduction box 6 with impeller unit 8, and planetary gear reduction box 6 is realized and being driven by main motor, drives mill bowl and impeller unit 8 to rotate; Planetary gear reduction box 6 is arranged at the bottom of side body set 5, and the bottom surface of side body set 5 is higher than the bottom surface absolute altitude of planetary gear reduction box 6;
The outer wall of mill bowl and impeller unit 8 is fixedly installed screeding device 7, and screeding device 7 is for scraping coal pulverizer by the foreign material that fall into side body set 5 inner chambers;
The top of side body set 5 is fixedly connected with separator body device 9; The inner chamber of separator body device 9 has been uniformly distributed circumferentially three cover Burnisher apparatus 4, and Burnisher apparatus 4 hangs in separator body device 9 by gudgeon 13 respectively;
As shown in Figure 2, the shape α 1 that has angle between the central axis of Burnisher apparatus 4 and horizontal plane, Burnisher apparatus 4 can rotation up and down in vertical plane centered by gudgeon 13; Burnisher apparatus 4 is positioned at the top of mill bowl and impeller unit 8; The working face of the grinding roller 41 of Burnisher apparatus 4 is the conical surface, and the working face of the mill bowl 81 of mill bowl and impeller unit 8 is inclined-plane, grinding roller 41 with grind between bowls 81 faying face and horizontal plane the shape α 2 that has angle; Between grinding roller 41 and mill bowl 81, be provided with gap;
The side mouth of side body set 5 is as pumped (conveying) medium entrance; Inner chamber input pumped (conveying) medium from from pumped (conveying) medium entrance to side body set 5; Pumped (conveying) medium can be hot-air; Pumped (conveying) medium can be supplied with by the independently mill exhauster that is positioned at the primary air fan of coal pulverizer upstream or is positioned at coal pulverizer downstream; Primary air fan provides malleation, and mill exhauster provides negative pressure;
Pumped (conveying) medium mainly contains three effects: 1) for coal pulverizer provides necessary power, make coal dust separate to control the fineness of coal dust; 2) in the process of lapping of coal, constantly it is dried and makes coal be easy to grind; 3) for being transported to burner hearth, coal dust provides power;
As shown in Figure 3, the top of Burnisher apparatus 4 is fixedly connected with one end of stay-bolt 12, and the other end of stay-bolt 12 stretches out the inner chamber of separator body device 9, and realizes and being fixedly connected with of separator body device 9 doorframes by pull-rod nut 121; Pull-rod nut 121 is arranged at the outside of separator body device 9;
At coal pulverizer outside rotating rod nut 121, stay-bolt 12 is moved in the horizontal direction, thereby drive Burnisher apparatus 4 to rotate around gudgeon 13, realize the adjusting of gap length between grinding roller 41 to Burnisher apparatus 4 and mill bowl and the mill bowl 81 of impeller unit 8;
The utility model regulates the gap between grinding roller and mill bowl by stay-bolt, and whole adjustment process just can complete in coal pulverizer outside, easy to adjust.
The top of Burnisher apparatus 4 is provided with hydraulic loading device 3; The loading force of hydraulic loading device 3 when providing coal pulverizer to mill;
The top of separator body device 9 is fixedly installed separator top cover 10; Separator top cover 10 is up big and down small structure, for retraining the flow direction of wind powder mixture, for coal dust effectively separates and provides passage to guarantee at rotor block place;
The inner chamber of separator top cover 10 is provided with rotor block 2; Rotor block 2 is pyramidal structure, plays the effect that separates coal dust;
The top center of separator top cover 10 is provided with coal spout 11, and coal spout 11 stretches into the inner chamber of separator body device 9; The top outer of separator top cover 10 is provided with four pulverized coal channels 15; Drive reductor 14 to be arranged between adjacent two pulverized coal channels 15;
Operation principle of the present utility model is as follows:
Raw coal is after coal spout 11 drops on mill bowl and impeller unit 8, by planetary gear reduction box 6, drive mill bowl and impeller unit 8 to rotate, raw coal radially moves outwardly under the effect of centrifugal force, on mill bowl and impeller unit 8, form one deck coal bed, coal bed passes through for 4 times at the Burnisher apparatus that can rotate around gudgeon 13; Coal bed produces a support force makes Burnisher apparatus 4 be rotated counterclockwise around gudgeon 13, hydraulic loading device 3 produces a loading force makes Burnisher apparatus 4 turn clockwise around gudgeon 13, thereby abrasive power is applied on coal bed by the grinding roller 41 rotating, and raw coal is ground into coal dust between grinding roller 41 and mill bowl 81;
Do radially and inner chamber that circumferentially mobile raw coal is carrying the coal dust being broken and cross the outer rim of mill bowl 81 and enter separator body device 9; In the process of lapping of coal, less lighter coal particle is blown afloat from mill bowl 81 outer rims by the pumped (conveying) medium in cavity continuously;
Pumped (conveying) medium rises along the outer rim of the mill bowl 81 of rotation, and the impeller that is arranged at the outer rim of mill bowl 81 makes air-flow be tending towards vertical direction; In mill bowl 81 outer rims, less lighter coal grain is carried upwards by air-flow, and the heavy external foreign material that are difficult for grinding fall into the inner chamber of side body set 5 through air-flow;
Lighter coal grain is carried the rotor block 2 that enters rotation by separator body device 9 by air-flow, when air-flow approaches rotor block 2, coal grain in air-flow is because being subject to the shock of rotor block 2, larger coal grain will be dished out by rotor block 2, less coal grain is allowed through rotor block 2, and leave separator top cover 10 and arrive pulverized coal channel 15, enter boiler combustion or be collected in order to lower one technique and use; The coal grain of being dished out is back to mill bowl 81 and is re-ground;
Through air-flow, fall into the external foreign material that are difficult for grinding of the inner chamber of side body set 5 and scraped in the hole on side body set 5 base plates by screeding device 7, then enter stone coal collecting system.
The utility model can be milled into coal dust by raw coal, make its reach can be in boiler of power plant the fineness of efficient burning, also can be applicable to steel mill's pulverized coal injection engineering or coal chemical technology for raw coal is milled into coal dust.
Claims (6)
1. a coal pulverizer, is characterized in that: comprise side body set (5), side body set (5) is directly seated on basis; The inner chamber of side body set (5) is provided with mill bowl and impeller unit (8);
The top of side body set (5) is fixedly connected with separator body device (9); The inner chamber of separator body device (9) has been uniformly distributed circumferentially many cover Burnisher apparatus (4), Burnisher apparatus (4) hangs in separator body device (9) by gudgeon (13) respectively, and Burnisher apparatus (4) can rotate up and down centered by gudgeon (13) in vertical plane; Burnisher apparatus (4) is positioned at the top of mill bowl and impeller unit (8); The working face of the grinding roller (41) of Burnisher apparatus (4) is the conical surface, and the working face of the mill bowl (81) of mill bowl and impeller unit (8) is inclined-plane; Between grinding roller (41) and mill bowl (81), be provided with gap;
The top of Burnisher apparatus (4) is fixedly connected with one end of stay-bolt (12), and the other end of stay-bolt (12) stretches out the inner chamber of separator body device (9), and realizes and being fixedly connected with of separator body device (9) by pull-rod nut (121); Pull-rod nut (121) is arranged at the outside of separator body device (9); At coal pulverizer outside rotating rod nut (121), stay-bolt (12) is moved in the horizontal direction, thereby drive Burnisher apparatus (4) to rotate around gudgeon (13), realize the adjusting to gap length between grinding roller (41) and mill bowl (81);
The top of Burnisher apparatus (4) is provided with hydraulic loading device (3); The loading force of hydraulic loading device (3) when providing coal pulverizer to mill;
The top of separator body device (9) is fixedly installed separator top cover (10); The inner chamber of separator top cover (10) is provided with rotor block (2); Rotor block (2) is pyramidal structure, plays the effect that separates coal dust;
Rotor block (2) is realized and being driven by rotor block drive unit (1); Rotor block drive unit (1) is belt transmission;
The top center of separator top cover (10) is provided with coal spout (11), and coal spout (11) stretches into the inner chamber of separator body device (9); The top of separator top cover (10) is provided with at least one pulverized coal channel (15).
2. coal pulverizer according to claim 1, is characterized in that: between the central axis of described Burnisher apparatus (4) and horizontal plane, form the first angle (α 1); Between the faying face of described grinding roller (41) and mill bowl (81) and horizontal plane, form the second angle (α 2).
3. coal pulverizer according to claim 2, is characterized in that: described the first angle (α 1) is 20 °～30 °; Described the second angle (α 2) is 10 °～20 °.
4. coal pulverizer according to claim 1, is characterized in that: described mill bowl is connected planetary gear reduction box (6) with impeller unit (8), and planetary gear reduction box (6) is realized and being driven by main motor, drives mill bowl and impeller unit (8) rotation; Planetary gear reduction box (6) is arranged at the bottom of side body set (5), and the bottom surface of side body set (5) is higher than the bottom surface absolute altitude of planetary gear reduction box (6).
5. coal pulverizer according to claim 1, is characterized in that: the outer wall of described mill bowl and impeller unit (8) is fixedly installed screeding device (7), and screeding device (7) is for scraping the foreign material that fall into side body set (5) inner chamber.
6. coal pulverizer according to claim 1, is characterized in that: described separator top cover (10) is up big and down small structure, and for retraining the flow direction of wind powder mixture, for coal dust, at rotor block (2), locating effectively to separate provides passage to guarantee.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657587.4U CN203556411U (en) | 2013-10-23 | 2013-10-23 | Coal grinding mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320657587.4U CN203556411U (en) | 2013-10-23 | 2013-10-23 | Coal grinding mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203556411U true CN203556411U (en) | 2014-04-23 |
Family
ID=50506164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320657587.4U Expired - Lifetime CN203556411U (en) | 2013-10-23 | 2013-10-23 | Coal grinding mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203556411U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104549653A (en) * | 2013-10-23 | 2015-04-29 | 上海重型机器厂有限公司 | Coal mill |
| CN105833946A (en) * | 2016-04-27 | 2016-08-10 | 江苏方天电力技术有限公司 | Medium-speed coal mill with novel grinding bowl structure |
| CN109311022A (en) * | 2016-06-21 | 2019-02-05 | 通用电气技术有限公司 | For upgrading system, the method and apparatus of pulverizer |
-
2013
- 2013-10-23 CN CN201320657587.4U patent/CN203556411U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104549653A (en) * | 2013-10-23 | 2015-04-29 | 上海重型机器厂有限公司 | Coal mill |
| CN105833946A (en) * | 2016-04-27 | 2016-08-10 | 江苏方天电力技术有限公司 | Medium-speed coal mill with novel grinding bowl structure |
| CN109311022A (en) * | 2016-06-21 | 2019-02-05 | 通用电气技术有限公司 | For upgrading system, the method and apparatus of pulverizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203291915U (en) | Ultrafine powder differential swing arm roller grinding machine | |
| CN110508610A (en) | A kind of full and uniform prosthetic device of forestry soil | |
| CN203556411U (en) | Coal grinding mill | |
| CN101462087B (en) | Stacking type planetary vertical mill | |
| CN204933651U (en) | Novel vertical mill device | |
| CN107470009B (en) | Device and method for deeply separating and equally dividing variable-frequency rotating pulverized coal of medium-speed coal mill | |
| CN104549653A (en) | Coal mill | |
| CN104941912A (en) | Intelligent and precise double-drive powder grading machine | |
| CN204911648U (en) | High -efficient lei meng milling machine | |
| CN103341445A (en) | Rotary type grain separating device | |
| CN103801430A (en) | Hydraulically-loaded dual-power pulverizer | |
| CN104249007B (en) | A kind of buffing machine | |
| CN104001588A (en) | Superfine vertical roller mill | |
| CN209753087U (en) | Coal grinding equipment for power plant boiler | |
| CN104998727B (en) | efficient Raymond mill | |
| CN204208656U (en) | Medium-speed pulverizer moving-stator blade is in conjunction with separator | |
| CN107282320A (en) | Double mouse cage separator for coal mill | |
| CN103506210B (en) | Coal pulverizer with double separator | |
| CN104959207A (en) | Material grinding bin suitable for roller cutting attritor | |
| CN104759334B (en) | High efficiency medium-speed grinding device | |
| CN205032229U (en) | Boiler coal mill | |
| CN201470434U (en) | Straight-through multi-stage suspension mill | |
| CN204866121U (en) | Horizontal ring roller pulverizing mill in nonmetal ore deposit | |
| CN114160268A (en) | Multifunctional roller type vertical mill | |
| CN209697054U (en) | A kind of medium-speed pulverizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161227 Address after: 200245 Jiangchuan Road, Shanghai, No. 230, building 1800, No. Patentee after: SHANGHAI ELECTRICAL SHANGHAI HEAVY MACHINE MILLING SPECIAL EQUIPMENT CO.,LTD. Patentee after: Shanghai Heavy Machine Plant Co.,Ltd. Address before: 200245 Jiangchuan Road, Shanghai, No. 1800, No. Patentee before: Shanghai Heavy Machine Plant Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
|
| CX01 | Expiry of patent term |