CN203140070U - Novel energy-saving coal mill - Google Patents
Novel energy-saving coal mill Download PDFInfo
- Publication number
- CN203140070U CN203140070U CN 201220629317 CN201220629317U CN203140070U CN 203140070 U CN203140070 U CN 203140070U CN 201220629317 CN201220629317 CN 201220629317 CN 201220629317 U CN201220629317 U CN 201220629317U CN 203140070 U CN203140070 U CN 203140070U
- Authority
- CN
- China
- Prior art keywords
- mill
- grinding roller
- energy saving
- liner plate
- grinds
- 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
Images
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a novel energy-saving coal mill, including a lower shell, a reducer and a motor, which are fixed on a bottom plate, and a mill level is fixed on the reducer, wherein the mill center is an upwardly convex conical mill cover, the edge of which is a mill liner, and the mill liner is an circular arched surface gradually increased outward, and a roller supported by the roller arm inclines into the mill liner above to match with the mill liner from the upper shell of coal mill. The coal mill has advantages of multiple functions, high efficient grinding, low wear, high bearing load, low noise and vibration, easy maintenance and compact structure, etc.
Description
Technical field
The utility model relates to milling apparatus, relates to the coal mill in particular.
Background technology
Coal is the important source material of large-scale consumption coal enterprise such as power plant, steel mill, and coal needs grind into powder before use, and to improve efficiency of combustion, present coal-grinding equipment is ball mill normally.Ball mill has the bulky heaviness of following shortcoming: ⑴; ⑵ have strong vibration and noise during running, and firm foundations must be arranged; ⑶ inefficiency, consumed energy is bigger; ⑷ the frictional dissipation of abrasive body and body is very big, and the meeting polluted product; ⑸ invest high.The equipment of ball mill accounts for ore dressing with capital expenditure and becomes more than 50% of crushing and grinding equipment gross investment; ⑹ maintenance cost height.The ball mill work under bad environment, dust is big, and the working life of the gear wheel that general transmission is used is 2-4, and only be some months the service life of pinion; ⑺ energy utilization rate is low.
The utility model content
Technical problem to be solved in the utility model is to realize a kind of high efficiency, the energy-conservation coal mill that input cost is low.
To achieve these goals, the technical solution adopted in the utility model is: a kind of energy saving coal mill, coal mill lower case, reductor and motor are fixed on the base plate, mill is horizontally fixed on the reductor, described mill center is the taper rubbing disc cover plate that raises up, edge one circle is the mill liner plate, and described mill liner plate is the outside annular cambered surface of rising gradually, and described grinding roller is supported above coal mill upper body tilts to extend into the mill liner plate by the grinding roller arm and also matches with it.
Described reductor is provided with one deck housing case outward, and by the labyrinth seal sealing, described labyrinth seal supports by seal support part between described housing case and the mill.
Have the blanking gap between described mill and the lower case, described blanking gap bottom is provided with outlet, and is provided with and is fixed on the scraper plate that is used for drawing in bottom, blanking gap material on the mill.
Described grinding roller arm outer end is fixed on the bearing block, and described bearing block vertical direction is adjusted the gap between grinding roller and the mill liner plate.
Described blanking gap is provided with ejection hot air spout ring, described mill top is provided with to charcoal pipe and inner core, described inner core is located in the grader housing and is had the material air channel between the two, be provided with a circle graded blade between inner core upper edge and the grader housing, be provided with air outlet in the grader housing of inner core top, described inner core inner bottom part is provided with the turnover panel scraper-trough conveyer.
Described upper body one side is provided with manhole.
Described grinding roller and mill liner plate adopt anti abrasive rich chromium cast iron to make, and surface overlaying.
Advantage of the present utility model is that this coal grinding tool has that function is many, high-efficient grinding, low wearing and tearing, bear loading condition, the low vibration of low noise, be easy to advantages such as maintenance, compact conformation.
Description of drawings
Below the content of every width of cloth accompanying drawing expression in the utility model specification and the mark among the figure are briefly explained:
Fig. 1 position coal mill structural representation;
Mark among the above-mentioned figure is: 1, lower case; 2, upper body; 3, grader housing; 4, base plate; 5, motor; 6, reductor; 7, mill; 8, mill liner plate; 9, mill cover plate; 10, grinding roller; 11, bearing block; 12, labyrinth seal; 13, seal support part; 14, scraper plate; 15, outlet; 16, grinding roller arm; 17, inner core; 18, turnover panel scraper-trough conveyer; 19, graded blade; 20; Air outlet; 21, to the charcoal pipe; 22, manhole; 23, spout ring.
The specific embodiment
Referring to Fig. 1 as can be known, energy saving coal mill bottom equipment bay 4, the reductor 6 that coal mill housing and enclosure interior are fixedly arranged on the bottom 4, reductor 6 is connected with motor 5 by shaft coupling, be horizontally installed with the mill 7 that is driven rotation by it on the reductor 6, housing comprises lower case 1 and upper body 2, mill 7 centers are the taper rubbing disc cover plate 9 that raises up, edge one circle is mill liner plate 8, wherein mill liner plate 8 is the annular cambered surface that outwards raises gradually, like this can be when mill 7 rotations be influenced by centripetal force, material can be evenly distributed on the mill liner plate 8, grinding roller 10 is supported from coal mill upper body 2 by grinding roller arm 16 and tilts to extend into mill liner plate 8 tops, the roller skin cross section on grinding roller 10 surfaces is curved, matches with mill liner plate 8 annular cambered surfaces, and grinding roller 10 and mill liner plate 8 adopt anti abrasive rich chromium cast iron to make, and surface overlaying is to improve abrasion resistance.Grinding roller 10 and mill liner plate 8 cooperate when grinding, raw material drops in the mill and at first enters the coarse crushing band, be 8 relative less places of sliding of grinding roller 10 and mill liner plate, material enters the broken band of micro mist subsequently, be 8 relative bigger places of sliding of grinding roller 10 and mill liner plate, in process of lapping, oarse-grained material is mainly pulverized by pushing, and small particles material mainly grinds by rubbing.
In order to improve grinding efficiency and Grinding Quality, grinding roller 10 is provided with three, grinding roller arm 16 outer ends are fixed on the bearing block 11, can vertical direction adjust gap between grinding roller 10 and the mill liner plate 8 by bearing block 11, the bearing block 11 outer case lid of also establishing, opening case lid can open grinding roller 10 by hydraulic cylinder, be easy to grinding roller 10 and 8 maintenance of mill liner plate and change.
Be provided with one deck housing case outside the reductor 6 of coal mill, by labyrinth seal 12 sealings, labyrinth seal 12 is supported on the reductor 6 by seal support part 13 simultaneously between this housing case structure and the mill 7.There is the blanking gap between mill 7 and the lower case 1, be provided with outlet 15 in bottom, blanking gap, and be provided with and be fixed on the mill 7 scraper plate 14 that is used for drawing in bottom, blanking gap material, scraper plate 14 is with mill 7 rotations, draw the material that drops to bottom, blanking gap in outlet 15 tops, outlet 15 belows can arrange collecting device, and the material that drops is re-used.
Grinding roller 10 and mill liner plate 8 grind qualified coal dust and collect by updraft, need to arrange in the blanking gap spout ring 23 of ejection hot blast, upper body 2 tops are by the grader housing seal, between grader housing seal and mill 7, be provided with inner core 17, the hollow frustum that this inner core 17 is big up and small down, the grader case top is provided with the air outlet 20 of collection material, and injecting material to charcoal pipe 21, be provided with a circle graded blade 19 between inner core 17 upper edges and the grader housing, make the air-flow of rising feeding must can be by air outlet 20 outputting materials through graded blade 19 screening.Be provided with the turnover panel scraper-trough conveyer 18 with the effect of lock wind at inner core 17 inner bottom parts, be convenient maintenance, upper body 2 one sides are provided with manhole 22.
During concrete work, motor 5 drives mills 7 by reductor 6 and rotates, and from drop on mill 7 central authorities to charcoal pipe 21, hot blast enters in the mill from air inlet material simultaneously through the lock feeding device.Rotation along with mill 7, material is under action of centrifugal force, move to mill 7 edges, be subjected to rolling of grinding roller during through the cannelure on the mill 7 and pulverize, material after the pulverizing is blown afloat by spout ring 23 at mill 7 edges, bulky grain directly drops on the mill 7 grinding again, qualified fine powder trips out mill with air-flow one, collect by dust arrester installation, be product, the material that contains moisture is dried in the contact process of thermal current, by regulating hot blast temperature, can satisfy the requirement of different humidity material, reach desired product moisture.By regulating grader, can reach the required fineness degree of different product.
In sum, compare with other coals mill of equivalents, the utility model coal mill has the following advantages: ⑴ multifunctionality, this equipment not only can grinding material and sorting particulates, can also dried material.⑵ high-efficient grinding, the milling area in the unit interval is big, and the good interlock raw material of energy, therefore can effectively improve grinding efficiency, and reduce in the Vertical Mill and circulate by the meal of sorting, thus the reduction power consumption.The adjustment of granule size can realize by the rotary speed that changes separator, the plus-pressure that changes grinding roller 10 pressurized cylinder, change ventilation easily.⑶ low wearing and tearing, grinding roller 10 and mill liner plate 8 adopt anti abrasive rich chromium cast iron material to be made, and grinding roller also has hard-face overlaying welding.⑷ it is better that bear loading condition, compares with other grinding machines, and the material amount of having of this grinding machine inside is less, less to the fluctuation of load influence of grinding machine.⑸ the low vibration of low noise because block has been installed, has avoided grinding roller 10 to contact with the direct of mill liner plate 8, so vibration and noise have also reduced.⑹ be easy to maintenance, and case lid comprises grinding roller 10, can open by hydraulic cylinder, so grinding roller 10 and mill liner plate 8 can be replaced easily.⑺ compact conformation, floor space is less.
By reference to the accompanying drawings the present invention has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or without improving design of the present invention and technical scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (7)
1. an energy saving coal grinds, it is characterized in that: coal mill lower case (1), reductor (6) and motor (5) are fixed on the base plate (4), mill (7) is horizontally fixed on the reductor (6), described mill (7) center is the taper rubbing disc cover plate (9) that raises up, edge one circle is mill liner plate (8), described mill liner plate (8) is the outside annular cambered surface of rising gradually, and described grinding roller (10) is supported above coal mill upper body (2) tilts to extend into mill liner plate (8) by grinding roller arm (16) and also matches with it.
2. energy saving coal according to claim 1 grinds, it is characterized in that: the outer one deck housing case that is provided with of described reductor (6), by labyrinth seal (12) sealing, described labyrinth seal (12) supports by seal support part (13) between described housing case and the mill (7).
3. energy saving coal according to claim 2 grinds, it is characterized in that: have the blanking gap between described mill (7) and the lower case (1), described blanking gap bottom is provided with outlet (15), and is provided with and is fixed on mill (7) and goes up the scraper plate (14) that is used for drawing in bottom, blanking gap material.
4. energy saving coal according to claim 1 grinds, and it is characterized in that: described grinding roller arm (16) outer end is fixed on the bearing block (11), and described bearing block (11) vertical direction is adjusted the gap between grinding roller (10) and the mill liner plate (8).
5. according to each described energy saving coal mill in the claim 3, it is characterized in that: described blanking gap is provided with ejection hot air spout ring (23), described mill (7) top is provided with to charcoal pipe (21) and inner core (17), described inner core (17) is located in the grader housing and is had the material air channel between the two, be provided with a circle graded blade (19) between inner core (17) upper edge and the grader housing, be provided with air outlet (20) in the grader housing of inner core (17) top, described inner core (17) inner bottom part is provided with turnover panel scraper-trough conveyer (18).
6. energy saving coal according to claim 1 grinds, and it is characterized in that: described upper body (2) one sides are provided with manhole (22).
7. energy saving coal according to claim 6 grinds, and it is characterized in that: described grinding roller (10) and mill liner plate (8) adopt anti abrasive rich chromium cast iron to make, and surface overlaying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629317 CN203140070U (en) | 2012-11-26 | 2012-11-26 | Novel energy-saving coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220629317 CN203140070U (en) | 2012-11-26 | 2012-11-26 | Novel energy-saving coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203140070U true CN203140070U (en) | 2013-08-21 |
Family
ID=48967627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220629317 Expired - Lifetime CN203140070U (en) | 2012-11-26 | 2012-11-26 | Novel energy-saving coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203140070U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567019A (en) * | 2013-11-12 | 2014-02-12 | 北京新源宝通电力设备有限公司 | Gradient grinding type HP (High Power) type coal mill |
| WO2021168933A1 (en) * | 2020-02-24 | 2021-09-02 | 南京西普水泥工程集团有限公司 | Multifunctional grinder |
| CN113399054A (en) * | 2021-06-24 | 2021-09-17 | 阳新娲石水泥有限公司 | Vertical roller mill capable of stabilizing material layer and improving grinding efficiency and roller milling method |
-
2012
- 2012-11-26 CN CN 201220629317 patent/CN203140070U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103567019A (en) * | 2013-11-12 | 2014-02-12 | 北京新源宝通电力设备有限公司 | Gradient grinding type HP (High Power) type coal mill |
| CN103567019B (en) * | 2013-11-12 | 2016-07-20 | 北京新源宝通电力设备有限公司 | A kind of gradual change compaction type HP type coal pulverizer |
| WO2021168933A1 (en) * | 2020-02-24 | 2021-09-02 | 南京西普水泥工程集团有限公司 | Multifunctional grinder |
| CN113399054A (en) * | 2021-06-24 | 2021-09-17 | 阳新娲石水泥有限公司 | Vertical roller mill capable of stabilizing material layer and improving grinding efficiency and roller milling method |
| CN113399054B (en) * | 2021-06-24 | 2023-09-12 | 阳新娲石水泥有限公司 | Vertical roller mill capable of stabilizing material layer and improving grinding efficiency and roller milling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102962115B (en) | Vertical grinding mill | |
| CN2805925Y (en) | Large-sized vertical roll mill | |
| CN203778148U (en) | Crushing mill | |
| CN102847587A (en) | External-circulation slag vertical roller mill | |
| CN203140070U (en) | Novel energy-saving coal mill | |
| CN106861824A (en) | A kind of new roller flour mill | |
| CN202212230U (en) | Impeller for HP series bowl type coal mills | |
| CN206746701U (en) | A kind of raw material grinding-roll sealing device | |
| CN201807409U (en) | Polygonal adjustable air ring for roller type mill | |
| CN202377048U (en) | Rolling mill | |
| CN201073607Y (en) | Mechanical type ring-milling crush classer | |
| CN201357093Y (en) | Vertical roller mill with wear-resisting lining plate structure | |
| CN202377047U (en) | Wood flour grinder | |
| CN202290187U (en) | Grinding table of vertical cement clinker grinder | |
| CN202951524U (en) | Vertical mill for grinding | |
| CN202983784U (en) | Centrifugal material discharge ball mill | |
| CN101480628A (en) | End milling equipment instead of ball mill | |
| CN202638581U (en) | Horizontal eddy dry-type magnetic separator | |
| CN115921023A (en) | Double-millstone fine grinding machine | |
| CN103447119A (en) | Vertical roller mill and grinding method thereof | |
| WO2021168933A1 (en) | Multifunctional grinder | |
| CN204093512U (en) | A kind of slag grinding mechanism | |
| CN202621229U (en) | Double-cavity vertical mill | |
| CN201419115Y (en) | Increment device of vertical mill | |
| CN206464024U (en) | A kind of high-efficiency vertical roller mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |