CN106694198A - Method for changing inner circulation raw material vertical mill system into outer circulation system - Google Patents
Method for changing inner circulation raw material vertical mill system into outer circulation system Download PDFInfo
- Publication number
- CN106694198A CN106694198A CN201510521136.1A CN201510521136A CN106694198A CN 106694198 A CN106694198 A CN 106694198A CN 201510521136 A CN201510521136 A CN 201510521136A CN 106694198 A CN106694198 A CN 106694198A
- Authority
- CN
- China
- Prior art keywords
- vertical mill
- raw material
- mill
- fine powder
- nozzle ring
- 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
Landscapes
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention relates to a transformation method for an inner circulation raw material vertical mill system, in particular to a method for changing the inner circulation raw material vertical mill system into an outer circulation system. The method includes the following steps that the ventilation area of a nozzle ring is increased or the nozzle ring is removed; a vertical mill slag rejection opening is transformed into a discharging outlet; a deslagging bucket elevator is changed into a vertical mill material outer circulation bucket elevator; a fine powder selecting machine of a vertical mill body is picked off, and an up-scattering and down-feeding fine powder selecting machine which is additionally arranged is placed above a vertical mill; a vertical mill raw material discharging mode is changed into discharging from a gap in the periphery of an abrasive disk, and a material is discharged through the transformed slag rejection opening by means of a scraping device, so that material outer circulation is achieved; and raw material drying hot wind is divided into two paths, the material is fed into the vertical mill material outer circulation bucket elevator through the transformed discharging outlet and a discharging conveyance device after being ground, and the ground material is fed into a feeding and scattering device of the newly-added fine powder selecting machine. By the adoption of the method, resistance losses of the vertical mill are lowered, and thus power dissipation of a circulating fan and energy consumption of unit raw material products are reduced.
Description
Technical field
The present invention relates to a kind of remodeling method of interior circulation raw material roller mill system, particularly interior circulation
The method that raw material roller mill system is changed to external circulating system.
Background technology
In the production of cement industry, powder-grinding process is the most process procedure of power consumption.And swashing
Under strong market competition and urgent economizer pressure so that grinding power-saving technology, conservation measures are not
Disconnected innovation, development.Raw material roller mill integrates grinding, dries, selects powder, and grinding pow consumption is obvious
Better than ball mill, the raw material in cement industry prepare workshop section, and the final grinding system of Vertical Mill is obtained
Success is promoted, and the project on current cement plant last decade is new, raw material grinding workshop is more with using vertical
Based on the whole grinding of mill, raw material roller mill final grinding system is interior circulation vertical mill system.In the recent period with
The R＆D and promotion application of final grinding system of roll squeezer, grinding pow consumption is substantially better than interior circulation Vertical Mill
Final grinding system.By conscientiously dissecting the difference of two systems, resistance is very low in itself for roll squeezer,
Material is all discharged in the way of outer circulation, two kinds of installed powers of the main frame grinding device of system
It is more or less the same, mill efficiency is also approximate, simply the material state after grinding is distinguished with granule-morphology
It is larger, subsequently use select powder air quantity also close to, in system configuration, following cycle blower fan
Differing pressure is larger, and mainly Vertical Mill resistance in itself is larger.Interior circulation Vertical Mill final grinding system
Why power consumption is high compared with outer circulation grinding system power consumption, is primarily present problems with：
Traditional Vertical Mill inside sets high velocity air nozzle ring, and air-flow is up to by wind speed after nozzle ring
60~90m/s, material relies primarily on high velocity air band to powder concentrator and is sorted in mill, and air-flow leads to
Cross nozzle ring local resistance loss and improving material friction loss it is larger, cause
Whole Vertical Mill gas-flow resistance loss is larger, while for improving material, it is desirable to which Vertical Mill has higher
Work air quantity, thus result in circulating fan power consumption larger.
Interior circulation Vertical Mill final grinding system is directly changed to final grinding system of roll squeezer, raw grinding
Power consumption can be reduced much, but improvement expenses is very big, furthermore Vertical Mill is thrown aside, cause efficient powder
The waste of Vertical Mill, furthermore roll squeezer are ground in itself without drying capacity and drying condition, all of baking
Dry to be carried out in powder system is selected, when raw material moisture is more than 5%, system adaptability can drop
It is low.Vertical Mill final grinding system is carried out into rebuilding at low cost to realize that the decline of system grinding pow consumption is most
Good selection.
Process system transformation such as is carried out according to final grinding system of roll squeezer, interior circulation Vertical Mill is selected into powder
Machine and nozzle ring remove, Vertical Mill material by elevator feed successively V-type powder concentrator with it is fine
Powder concentrator, select powder and drying materials, SR also final grinding system of roll squeezer basic one
Cause, unit raw meal powder grinding pow consumption can also reach it is consistent with final grinding system of roll squeezer, due to this
Modification scheme newly will Jia two and cover powder concentrator, and framework will also be increased, and civil engineering costs also increases much,
Total improvement expenses can be larger.
At present it is existing only from the direct air intake in Vertical Mill middle and upper part to the grinding device of separator
(CN103537338A), because drying hot blast directly enters powder selection device, only to being fed to separation
Material in device is dried, and when material moisture is big, will import and export equipotential going out to grind elevator
Generation blocking is put, influence system is normally run, and causes system not strong to the adaptability of material.
In current existing Vertical Mill outer circulation grinding system, using conventional separators principle, material
All through top material-strewing device spreading dispersion (CN102698853A), cause part on separator
Level area material concentration is very big, and dispersion effect is not strong, so as to influence grading effect, and then influences system
The raising of yield of uniting.
The deficiency that the present invention exists aiming at interior circulation Vertical Mill final grinding system, and roll squeezer
The drying capacity that final grinding system is present is limited, proposes that a kind of interior circulation raw material roller mill system is changed to
The method of external circulating system, not only make use of the efficient grinding of Vertical Mill, former interior circulation raw material roller mill
The equipment of final grinding system is basic without transformation, simply local reasonable reformation, reduces again and is
The resistance of system, and then raw grinding power consumption is reduced, improvement expenses is relatively low, and moisture content is fitted
Should be able to power than roll squeezer end grinding be eager to excel.
The content of the invention
The technical problems to be solved by the invention are to provide that a kind of improvement expenses is relatively low, grinding pow consumption
Reduction, the interior circulation raw material roller mill system beneficial to the output increased of system are changed to external circulating system
Method.
In order to solve the above technical problems, the present invention is realized as follows：In design is a kind of
The method that recycle feed vertical mill system is changed to external circulating system, it includes herein below and step：
(1) Vertical Mill nozzle ring is transformed, nozzle ring draught area is increased or removed nozzle ring；
(2) Vertical Mill drawing mechanism is transformed, Vertical Mill scum mouthful is transformed into discharging opening；
(3) conveying capacity that Vertical Mill goes out material conveying device is increased, deslagging bucket elevator is replaced by vertical
Grind materials outer circulation bucket elevator；
(4) remove the fine powder concentrator of Vertical Mill body, newly add spreading, lower charging it is fine
Powder concentrator is placed on Vertical Mill top；
(5) holding Vertical Mill raw material pan feeding mode is constant, and discharge method is changed to from mill periphery space
Blanking, material is discharged material from improved scum mouthful by scraper, is realized outside material
Circulation；
(6) circulating fan is transformed, circulating fan is transformed into the blower fan of frequency control；
(7) by raw material stoving hot blast point two-way, maintenance is passed through below former nozzle ring all the way
Vertical Mill air intake vent, introduces the new fine powder concentrator air intake vent added above Vertical Mill all the way；
(8) pass through improved discharging opening after material grinding, go out material conveying device feeding Vertical Mill thing
Material outer circulation bucket elevator, new plus fine choosing is fed by outer circulation bucket elevator by the material after grinding
The feeding material-strewing device of powder machine, completes the sorting of material in fine powder concentrator.
8 contents of the above can be carried out order adjustment in the system reform, according to concrete case,
Which part content can be transformed, full content can be also transformed.
Enter Vertical Mill air quantity with regulation Vertical Mill nozzle ring lower section by transforming nozzle ring, by nozzle ring wind
Prompt drop to below 15m/s, the resistance of Vertical Mill nozzle ring significantly declines, Vertical Mill resistance in itself
Reduce more than 4000Pa；Raw material stoving hot blast point two-way, two-way hot blast respectively enter Vertical Mill with
Fine powder concentrator is newly added, two-way respectively sets ventilation valve, to control the ratio of two-way air quantity.
Vertical Mill goes out material conveying device and meets material whole in Vertical Mill with circulation bucket elevator conveying capacity
Outer circulation discharge and conveying are realized, raw material is directly entered grinding disc of vertical mill from Vertical Mill original entrance, in mill
It is ground on disk, the material after grinding is got rid of to mill material under grinding disc of vertical mill centrifugal action
Disk edge, Vertical Mill, Vertical Mill will be discharged after under material scraper by the material scraping plate that adds by discharging opening
Conveying device afterwards is changed or transformed with the conveying capacity of circulation bucket elevator, to meet
There is the conveying requirement of Vertical Mill material.
For another improvement of the invention, core is carried out to the powder concentrator that former Vertical Mill is carried in itself
Calculate, when the parts such as its rotor cage meet newly adds fine powder concentrator requirement, newly add spreading
The part of the fine powder concentrator of lower charging can by former Vertical Mill body carry powder concentrator part substitute or
It is used after transformation, further reduces investment for trnasforming urban land.
For further improvement of the present invention, newly add the fine powder concentrator fed under spreading and exist
Rotor cage top sets the first material-strewing device, and the first material-strewing device feeding spreading mouthful has two or two
More than individual, and circumferentially in uniform arrangement, realize material in the uniform spreading of spreading disk surrounding, profit
In the dispersion of material powder is selected with the efficient of powder concentrator.
For further improvement of the present invention, newly add the fine powder concentrator fed under spreading and exist
Rotor cage lower section sets the second material-strewing device, and the second material-strewing device uses center spreading, by Vertical Mill
Material after grinding separates spreading from rotor of powder separator cage top with lower section, and top spreading is in gravity
Selected powder wind brings powder-separating area under effect, and lower section spreading is carried upwardly into and selects powder under wind-force effect
Area, obtains more uniform by material dispersion, efficiently powder is selected beneficial to fine powder concentrator, to drop
Low powder concentrator resistance is also favourable.
As another improvement of the invention, go out material conveying device in improved Vertical Mill and newly add
If fine powder concentrator between add deironing apparatus, magnetisable material is mingled with material, in addition one
A little magnetic metal materials are contained in inside bulk materials, and the proportioning belt top below proportioning station is set
Tramp iron separator be difficult to detect and exclude, after these bulk materials are ground by Vertical Mill, magnetisable material meeting
Break off and, deironing apparatus are added after Vertical Mill, can be by the magnetic metal material in bulk materials
Detect and exclude, it is favourable to following cycle grinding, that is, the vibration of Vertical Mill is reduced, prolong again
The service life of Vertical Mill wearing piece is grown.
The present invention undergoes technological transformation on the basis of raw material interior circulation Vertical Mill end grinding, fully profit
With with remain most equipment and Vertical Mill part, make interior circulation Vertical Mill into outer circulation and stand
Mill, the airlift of former nozzle ring arrangement is instead of with mechanical lifting, saves part energy consumption,
Vertical Mill drag losses in itself is dropped into relatively low level so that SR is substantially reduced, greatly
Amplitude reduction circulating fan energy consumption, so as to reduce system grinding pow consumption.Simply to partial devices with
Part is transformed, and improvement expenses is relatively low, is that raw material interior circulation Vertical Mill final grinding system technology changes
The relatively inexpensive rational modification scheme made.
The positive effect of the present invention：In technical solution of the present invention, to Vertical Mill powder selecting part part, nozzle
Ring, drawing mechanism and circulating fan carry out part transformation, remain most devices, transformation
Expense is relatively low；Using the grinding device of former interior circulation Vertical Mill, retain the property of its efficient grinding material
Can, drop material interior circulation is changed to the mode of Vertical Mill outer circulation, substantially reduces Vertical Mill resistance in itself
Power and SR so that circulating fan power consumption is significantly relatively low, so that raw material roller mill end grinding
The reduction of system grinding pow consumption；Divide two-way by drying hot blast, Vertical Mill is introduced all the way, choosing is introduced all the way
Powder machine, makes raw material realize drying twice in Vertical Mill with powder concentrator, improves system (special to raw material
Be not the larger raw material of moisture content) adaptability；Newly adding fine rotor of powder separator cage upper and lower
Each to set material-strewing device, the distribution by fine powder in powder-separating area domain is more uniform, is advantageously implemented height
The grinding efficiency of effect, and beneficial to the gas-flow resistance of powder selection device is reduced, finally beneficial to the product of system
Amount is improved and power consumption reduction.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below
The accompanying drawing to be used needed for embodiment or description of the prior art will be briefly described, show and
Easy insight, drawings in the following description are only some embodiments of the present invention, for this area
For those of ordinary skill, do not pay create it is laborious on the premise of, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is the process chart before the interior circulation raw material roller mill system reform of the present invention
Fig. 2 is that the present invention is transformed into external circulating system in interior circulation raw material roller mill system-based
Process flow diagram afterwards
Fig. 3 is another improved process flow diagram of the present invention
Fig. 4 is another improved process flow diagram of the present invention
Fig. 5 is another improved process flow diagram of the present invention
The fine powder concentrator that the Vertical Mill of 1 Vertical Mill 2 is carried
The fine powder concentrator that 2A is newly added
2A-1 newly adds the rotor cage of fine powder concentrator
2A-2 newly adds the first spreading disk of fine powder concentrator
2A-3 newly adds the Vertical Mill drawing-in device of the second spreading disk 3 of fine powder concentrator
4 Vertical Mill air intake vents 5 go out to grind the deslagging bucket elevator of belt feeder 6
The bag collector of 7 rotoclone collector, 8 circulating fan 9
10 exhaust blower 11- chimney 1-2 grinding roller of vertical mill
1-3 grinding disc of vertical mill 1-4 Vertical Mill nozzle ring 1-5 Vertical Mills scum mouthful
12 tramp iron separators
Specific embodiment
In order that the object, technical solutions and advantages of the present invention become more apparent, with reference to
Specific embodiment and accompanying drawing, are described in further details to the present invention.Here, of the invention
Exemplary embodiment and its illustrate for explaining the present invention, but be not intended as to limit of the invention
It is fixed.
Process chart before the interior circulation raw material roller mill system reform is shown in Fig. 1, technological process description
It is as follows：
Raw material from proportioning station feeds vertical by ingredients belt feeding Vertical Mill drawing-in device 3
Mill 1, raw material falls grinding disc of vertical mill 1-3 centers, and centrifugal force is received when grinding disc of vertical mill 1-3 rotates
Effect, material is moved between grinding disc of vertical mill 1-3 and grinding roller 1-2, under grinding roller 1-2 pressure
It is ground.Nozzle ring 1-4, drying are set between the mill 1-3 edges and housing of Vertical Mill 1
Hot blast is passed through Vertical Mill air intake vent 4, the powder after Vertical Mill 1 is ground by nozzle ring 1-4 with
The wind speed of 60-90m/s blows afloat upwards, brings the thinner powder of particle into essence that Vertical Mill top carries
Thin powder concentrator 2, carries out powder sorting, and the powder for meeting raw material granularity is selected, by hot blast band
Entering rotoclone collector 7 carries out raw meal powder collection, and the meal for sub-electing is fallen on mill 1-3 again
Grinding is circulated, hot blast draws wind by circulating fan 8, by drying hot blast from Vertical Mill air intake vent
4 move rotoclone collector 7 to, and the hot blast of circulating fan 8 is divided into two-way, leads up to bag and gathers dust
Device 9, exhaust blower 10, chimney 11 enter air, another road converge with drying hot blast after again
Vertical Mill air intake vent 4 is passed through, to adjust the wind speed of the ventilation of Vertical Mill 1 and nozzle ring 1-4.In spray
The bulk materials that can not be got on by hot blast band at mouth ring 1-4 are discharged vertical by Vertical Mill scum mouthful 1-5
Mill, sequentially passes through out mill belt feeder 5, deslagging bucket elevator 6 and is sent on feed proportioning belt feeder,
Again being fed to from Vertical Mill drawing-in device 3 carries out circular grinding on grinding disc of vertical mill 1-3.Due to Vertical Mill
Wind speed at nozzle ring 1-4 reaches 60-90m/s, and resistance is very big herein, about 4000Pa so that be
In more than 10000Pa, circulating fan will overcome the resistance to need to consume a large amount of energy consumptions to system resistance,
So that interior circulation raw material roller mill system grinding pow consumption is higher (compared with external circulating system).
In order to reduce system grinding energy, the wind for overcoming vertical mill system resistance to consume particularly is reduced
Function consumes, and the present invention optimizes upgrading to the system, by interior circulation raw material roller mill system
External circulating system is changed to, specific method is as follows：
(1) Vertical Mill nozzle ring 1-4 is transformed, nozzle ring 1-4 draught areas is increased or lost nozzle is removed
Ring 1-4；
(2) Vertical Mill drawing mechanism is transformed, Vertical Mill scum mouthful 1-5 is transformed into discharging opening；
(3) conveying capacity that Vertical Mill goes out material conveying device is increased, deslagging bucket elevator is replaced by vertical
Grind materials outer circulation bucket elevator；
(4) remove the fine powder concentrator 2 of Vertical Mill body, newly add spreading, lower charging it is fine
Powder concentrator (2A) is placed on Vertical Mill top；
(5) holding Vertical Mill raw material pan feeding mode is constant, and discharge method is changed to from mill periphery space
Blanking, material is discharged material from improved scum mouthful by scraper, is realized outside material
Circulation；
(6) circulating fan 8 is transformed, circulating fan is transformed into the blower fan of frequency control；
(7) by raw material stoving hot blast point two-way, maintenance is passed through below former nozzle ring all the way
Vertical Mill air intake vent 4, introduces the new fine powder concentrator (2A) added above Vertical Mill all the way；
(8) pass through improved discharging opening after material grinding, go out material conveying device feeding Vertical Mill thing
Material outer circulation bucket elevator, new plus fine choosing is fed by outer circulation bucket elevator by the material after grinding
The feeding material-strewing device of powder machine, completes selecting for raw meal powder finished product in fine powder concentrator.
8 contents of the above can be carried out order adjustment in the system reform, according to concrete case,
Which part content can be transformed, full content can be also transformed.
As the preferred embodiments of the present invention, Fig. 2 is seen, the draught area of nozzle ring 1-4 is added
Greatly, to reduce wind speed herein, by transform enter below nozzle ring and regulation Vertical Mill nozzle ring it is vertical
Mill air quantity, is down to below 15m/s, and then reduce by nozzle ring 1-4 wind speed from more than 60m/s
The resistance of nozzle ring 1-4, so as to reduce the resistance of system, the total head of former circulating fan 8 is just
Can seem excessive, and the air quantity of circulating fan 8 is preceding with transformation basically identical (in view of powder concentrator is selected
The general principle of powder does not change, and selects the powder air quantity basically identical before and after the system reform), in order to
Original system device is made full use of, Frequency Conversion Modification is carried out to circulating fan 8, improvement expenses is relatively low,
The energy-saving effect that can be played during actual motion after transformation.Will drying hot blast point two-way, a-road-through
Enter Vertical Mill, fine powder concentrator after transformation is passed through all the way, may be implemented in Vertical Mill and fine powder concentrator
Dual drying to material, adaptability wider (the especially adaptation of moisture content of the system to material
Property), (raw material that final grinding system of roll squeezer is adapted to more stronger than final grinding system of roll squeezer adaptability
Moisture content is below 5%).
If raw material moisture is smaller, nozzle ring 1-4 can be removed, Vertical Mill drag losses in itself
Smaller, energy saving of system becomes apparent from；When fine powder concentrator is capable of achieving the drying of raw material in itself,
Drying hot blast can all be passed through fine powder concentrator, and the air-valve all the way of Vertical Mill can will be passed through under this operating mode
Close, see Fig. 3.
Material after being ground due to Vertical Mill 1 is fed with mechanical lifting by outer circulation and finely selects powder
Machine, outer discharge capacity is greatly increased, and former Vertical Mill scum mouthful 1-5 needs to increase, Vertical Mill discharging belt conveyer
5 need to be replaced with the bigger device of conveying capacity with scum bucket elevator 6, to meet thing in Vertical Mill
Material realizes outer circulation discharge and conveying.
As a modification of the present invention embodiment, the fine powder concentrator 2 that former Vertical Mill is carried is entered
Row transformation, if its core component rotor cage and accessory can be in the fine powder concentrators for newly adding
Upper use, newly add spreading, the fine powder concentrator of lower charging part can by former Vertical Mill body from
Formed with the transformation of fine powder concentrator, many improvement expenseses can be saved.
Change as a further improvement on the present invention, see Fig. 4, newly add spreading, lower charging
Fine powder concentrator rotor cage (2A-1) top set the first material-strewing device (2A-2), first spreads
The spreading mouthful of material device feeding has two or more, and circumferentially in uniform arrangement；In rotor
Cage lower section sets the second material-strewing device (2A-3), and the second material-strewing device uses center spreading.Separate
Spreading is conducive to the distribution by fine powder in powder-separating area domain more uniform, is advantageously implemented and finely selects powder
The efficient grinding efficiency of machine simultaneously reduces the gas-flow resistance of powder selection device, the final yield beneficial to system
Improve and power consumption reduction.
Change as a further improvement on the present invention, see Fig. 5, discharged in improved Vertical Mill defeated
Send and add deironing apparatus 12 between device and the new fine powder concentrator for adding.It is mingled with material
Magnetisable material, other magnetic metal material is contained in inside bulk materials, below proportioning station
The tramp iron separator that proportioning belt top is set is difficult to detect and excludes, and these bulk materials are ground by Vertical Mill
After mill, magnetisable material can be broken off and, and deironing apparatus are added after Vertical Mill, can be by bulk materials
Interior magnetic metal material is detected and excluded, favourable to following cycle grinding, that is, reduce
The vibration of Vertical Mill, extends the service life of Vertical Mill wearing piece again.
Above-mentioned embodiment is only that the preferred embodiment of the present invention is described, not right
The scope of the present invention is defined, and the present invention can also have other embodiment, all using equal
The technical scheme that the mode of replacement or equivalent transformation is formed, all falls within protection scope of the present invention
It is interior.
Claims (7)
1. the method that interior circulation raw material roller mill system is changed to external circulating system, it is characterised in that including
Herein below and step：
(1) Vertical Mill nozzle ring is transformed, nozzle ring draught area is increased or removed nozzle ring；
(2) Vertical Mill drawing mechanism is transformed, Vertical Mill scum mouthful is transformed into discharging opening；
(3) conveying capacity that Vertical Mill goes out material conveying device is increased, deslagging bucket elevator is replaced by vertical
Grind materials outer circulation bucket elevator；
(4) the fine powder concentrator of Vertical Mill body is removed, the fine choosing fed under spreading is newly added
Powder machine is placed on Vertical Mill top；
(5) holding Vertical Mill raw material pan feeding mode is constant, and discharge method is changed to from mill periphery space
Blanking, material is discharged material from improved scum mouthful by scraper, is realized outside material
Circulation；
(6) circulating fan is transformed, circulating fan is transformed into the blower fan of frequency control；
(7) by raw material stoving hot blast point two-way, maintenance is passed through below former nozzle ring all the way
Vertical Mill air intake vent, introduces the new fine powder concentrator air intake vent added above Vertical Mill all the way；
(8) pass through improved discharging opening after material grinding, go out material conveying device feeding Vertical Mill thing
Material outer circulation bucket elevator, new plus fine choosing is fed by outer circulation bucket elevator by the material after grinding
The material-strewing device of powder machine, completes the sorting of material in fine powder concentrator.
2. interior circulation raw material roller mill system as claimed in claim 1 is changed to external circulating system
Method, it is characterised in that：Enter Vertical Mill with regulation Vertical Mill nozzle ring lower section by transforming nozzle ring
Air quantity, below 15m/s is down to by nozzle ring wind speed.
3. interior circulation raw material roller mill system as claimed in claim 1 is changed to external circulating system
Method, it is characterised in that：Vertical Mill goes out material conveying device and is more than with circulation bucket elevator conveying capacity
Material maximum tonnage capacity in outer circulation Vertical Mill.
4. interior circulation raw material roller mill system as claimed in claim 1 is changed to external circulating system
Method, it is characterised in that：Newly add the part of the fine powder concentrator (2A) fed under spreading
Powder concentrator transformation can be carried by former Vertical Mill body to form.
5. interior circulation raw material roller mill system as claimed in claim 1 is changed to external circulating system
Method, it is characterised in that：The fine powder concentrator fed under spreading is newly added in rotor cage
(2A-1) top sets the first material-strewing device, and the first material-strewing device (2A-2) feeding spreading mouthful has two
Individual or two or more, and circumferentially in uniform arrangement.
6. interior circulation raw material roller mill system as claimed in claim 1 is changed to external circulating system
Method, it is characterised in that：The fine powder concentrator fed under spreading is newly added in rotor cage
(2A-1) lower section sets the second material-strewing device, and the second material-strewing device (2A-3) uses center spreading.
7. interior circulation raw material roller mill system as claimed in claim 1 is changed to external circulating system
Method, it is characterised in that：Go out material conveying device in improved Vertical Mill fine with what is newly added
Deironing apparatus (12) are set between powder concentrator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510521136.1A CN106694198B (en) | 2015-08-21 | 2015-08-21 | The method that interior recycle feed vertical mill system is changed to external circulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510521136.1A CN106694198B (en) | 2015-08-21 | 2015-08-21 | The method that interior recycle feed vertical mill system is changed to external circulating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106694198A true CN106694198A (en) | 2017-05-24 |
| CN106694198B CN106694198B (en) | 2019-02-22 |
Family
ID=58918706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510521136.1A Active CN106694198B (en) | 2015-08-21 | 2015-08-21 | The method that interior recycle feed vertical mill system is changed to external circulating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106694198B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273643A (en) * | 2018-04-20 | 2018-07-13 | 南京凯盛国际工程有限公司 | A kind of novel raw material vertical-grinding preparation system |
| CN112827636A (en) * | 2020-12-31 | 2021-05-25 | 新乡市长城机械有限公司 | External circulation grading magnetic separation process for steel slag vertical mill |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4597537A (en) * | 1982-09-14 | 1986-07-01 | Onoda Cement Company, Ltd. | Vertical mill |
| EP0513770A2 (en) * | 1991-05-14 | 1992-11-19 | Kawasaki Jukogyo Kabushiki Kaisha | Crushing apparatus and crushing method |
| DE4306930A1 (en) * | 1992-07-25 | 1994-09-08 | Zementanlagen Und Maschinenbau | Plant circuit for the comminution of material to be milled, preferably cement clinker |
| CN201799305U (en) * | 2010-09-02 | 2011-04-20 | 崔信明 | External circulation type vertical mill |
| CN203155301U (en) * | 2013-04-10 | 2013-08-28 | 高县天顺建材有限责任公司 | Combined sorting vertical mill |
| CN204412366U (en) * | 2014-12-08 | 2015-06-24 | 天津水泥工业设计研究院有限公司 | Wind apparatus is divided for regulating the vertical roller grinder improving cement granules grating |
-
2015
- 2015-08-21 CN CN201510521136.1A patent/CN106694198B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4597537A (en) * | 1982-09-14 | 1986-07-01 | Onoda Cement Company, Ltd. | Vertical mill |
| EP0513770A2 (en) * | 1991-05-14 | 1992-11-19 | Kawasaki Jukogyo Kabushiki Kaisha | Crushing apparatus and crushing method |
| DE4306930A1 (en) * | 1992-07-25 | 1994-09-08 | Zementanlagen Und Maschinenbau | Plant circuit for the comminution of material to be milled, preferably cement clinker |
| CN201799305U (en) * | 2010-09-02 | 2011-04-20 | 崔信明 | External circulation type vertical mill |
| CN203155301U (en) * | 2013-04-10 | 2013-08-28 | 高县天顺建材有限责任公司 | Combined sorting vertical mill |
| CN204412366U (en) * | 2014-12-08 | 2015-06-24 | 天津水泥工业设计研究院有限公司 | Wind apparatus is divided for regulating the vertical roller grinder improving cement granules grating |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273643A (en) * | 2018-04-20 | 2018-07-13 | 南京凯盛国际工程有限公司 | A kind of novel raw material vertical-grinding preparation system |
| CN112827636A (en) * | 2020-12-31 | 2021-05-25 | 新乡市长城机械有限公司 | External circulation grading magnetic separation process for steel slag vertical mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106694198B (en) | 2019-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101134175B (en) | Roller press combination grinding device | |
| CN103045777B (en) | Dry processing technique for iron-containing steel slag | |
| CN102728445A (en) | Method for fine grinding of iron ore by dry method | |
| CN208542555U (en) | A kind of Novel wind powder concentrator | |
| CN209109277U (en) | A kind of pre-separation bypass wind roller type vertical mill | |
| CN203002448U (en) | Cement open-circuit grinding system with powder pre-selecting function | |
| CN103949322A (en) | Nickel slag grinding system and production process thereof | |
| CN203874873U (en) | Nickel slag grinding system | |
| CN202162017U (en) | Cement raw material preparation system for rolling machine | |
| CN106669888A (en) | Efficient roller pressing grinding station and technique thereof | |
| CN103127995A (en) | Powder material preparation device and method thereof | |
| CN111822129A (en) | Iron ore dry grinding and dressing device and process | |
| CN105080698A (en) | Vertical roller mill system and milling process thereof | |
| CN203853154U (en) | Efficient energy-saving vertical mill classifier | |
| CN203916847U (en) | A kind of new and effective cement grinding system | |
| CN204933577U (en) | Vertical Mill device | |
| CN102371205A (en) | Novel grinding-free process of producing micropowder | |
| CN202655097U (en) | Iron mine dry method fine grinding system | |
| CN204974152U (en) | System is selected in ore deposit | |
| CN207102827U (en) | Vertical roller grinder bypass classification drying raw material Preparation equipment | |
| CN214183391U (en) | Ball mill grinding system for drying high-moisture materials by adopting combined type powder selecting machine | |
| CN106694198A (en) | Method for changing inner circulation raw material vertical mill system into outer circulation system | |
| CN204276052U (en) | A kind of slag vertical-mill possessing deferrization functional in mill | |
| CN106423414B (en) | material grinding system | |
| CN102225397B (en) | Cement raw material preparation system for rolling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 303 Hanzhongmen street, Gulou District, Nanjing City, Jiangsu Province Patentee after: Zhongcai International Intelligent Technology Co.,Ltd. Address before: 303 Hanzhongmen street, Gulou District, Nanjing City, Jiangsu Province Patentee before: NANJING KISEN INTERNATIONAL ENGINEERING Co.,Ltd. |