CN202137014U - Outer circulation deironing grinding equipment - Google Patents
Outer circulation deironing grinding equipment Download PDFInfo
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- CN202137014U CN202137014U CN201120165774U CN201120165774U CN202137014U CN 202137014 U CN202137014 U CN 202137014U CN 201120165774 U CN201120165774 U CN 201120165774U CN 201120165774 U CN201120165774 U CN 201120165774U CN 202137014 U CN202137014 U CN 202137014U
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Abstract
Outer circulation deironing grinding equipment belongs to grinding equipment. A high pressure grinding roller is connected onto a vertical transmission shaft and arranged on a wear-resistant millstone, a powder selecting area is arranged on the upper portion of a powder selecting chamber, four cyclone separators are evenly distributed on the outer side of the powder selecting chamber, the upper portions of the cyclone separators are communicated with the upper portion of the powder selecting chamber, a fine powder collector is arranged at the bottom end of each cyclone separator, a medium and coarse powder collecting cone is arranged below the powder selecting area, an air inlet of a high pressure fan is arranged at the bottom end of the powder selecting chamber, one end of a return air duct is connected with the high pressure fan, and the other end of the return air duct is respectively connected with the top ends of the cyclone separators. By the aid of rolling material bed grinding technology and outer circulation deironing process, powder classification is realized in the equipment, and iron impurities in powder are removed timely, so that loss of steel is reduced. A traditional rotating vertical millstone and a traditional driven grinding roller are changed into a fixed millstone and a rolling grinding roller, powder classification is realized in the equipment, and the equipment is high in operating efficiency and excellent in fine-grinding performance.
Description
Technical field
The utility model relates to a kind of milling equipment, particularly a kind of outer circulation deironing milling equipment.
Background technology
Since China's reform and opening-up, national economy increases fast, and " scientific and technical innovation, autonomous innovation " become the main flow of current industrial development, and China's industry progressively develops to the direction of intensive style, energy-saving and emission-reduction, low-carbon (LC).China is manufacture of cement big country, also is cement consumption big country, reduces the mistake high energy consumption in the cement pulverizing course energetically, and is significant to China's energy-saving and emission-reduction.Add up according to interrelated data; Cement in China factory 1 ton of cement of every production needs the material of grinding more than 30 kinds; And grinding pow consumption accounts for 65%～70% of the total power consumption of manufacture of cement, and the grinding cost accounts for about 35% of total production cost, and the grinding system maintenance capacity accounts for 60% of full plant maintenance capacity.Therefore, grinding is very big to the benefit influence of cement production enterprise, and the energy-saving and emission-reduction task is arduous.Along with implementing of strategy of sustainable development policy; In order further to reduce the manufacture of cement cost, cement industry just in primary study energy savings how, reduces and pollutes; In manufacture of cement, cut down the consumption of energy good, the profitable on ecology high grade cement of exploitation environmental benefit greatly.2009 Chinese cements industry grinding technology summit forum is in Held in Nanjing, and Session Topic is " maximization of production increases with quality up and cost of production down, low cost and benefit " that realizes cement in China grinding technology and technology.Ball mill is that cement powder prepares the most frequently used material grinding equipment, and it is big, firm in structure to have a comminution ratio; Advantages such as single machine yield height and air-tightness are good; But it also has energy utilization efficiency low (generally only reaching 2-3%), and noise is big, the heavy and more high shortcoming of steel consumption of volume.Roll squeezer also is a cement grinding preparatory milling equipment commonly used, roll squeezer technology comparative maturity, and energy-saving effect is apparent in view, and equipment price is also than higher.But roll squeezer to go out machine material particles pattern bad; Influence concrete operability, must all go into abrasive dust mill so roll squeezer goes out the machine material, the material of having reached article requirement goes into to grind once more grinding not only influences mill output; Also cause grinding easily, influenced the clinker strength performance.Over more than 100 year, people have done a large amount of research to the production technology and the mechanical kinetics characteristic of grinding machine, though obtained some progress and achievement, in practice, still have the technical barrier that does not overcome as yet.
Summary of the invention
The purpose of the utility model is to overcome above deficiency; A kind of outer circulation deironing milling equipment is provided; Employing rolls material bed grinding technology, will roll mill and dynamic classification machine organic assembling, realizes particle classifying at device interior; Realize circulation deferrization in device external, high efficiency, performance in small, broken bits is good, abrasion are little, energy consumption is low, reduced investment, maintenance safe are simple.
The utility model solves the technical scheme that its technical problem adopted: be made up of Vertical Mill, powder concentrator, blower fan, elevator, wherein, Vertical Mill contains main gear reducer, wear-resisting mill, high pressure vane, high pressure grinding rolls; Powder concentrator contains slag-drip opening, pipeline tramp iron separator, air valve I, air valve II, powder-separating area, lock feeding device, charging tramp iron separator, reductor, drive motors, wind blade, middle meal collection cone, separating chamber, fine powder collector, product outlet; Blower fan contains high pressure positive blower, blower motor, return air duct, and Vertical Mill top connects powder concentrator, establishes the fines collection device around the powder concentrator, and fan outlet connects the Vertical Mill bottom; Return air duct connects the powder concentrator top, the terminal powder pipeline of connecting of the middle meal collection cone of powder concentrator, and logical tube cell road junction connects the elevator charging aperture, and the elevator top connects material blanking tube; The material blanking tube outlet is positioned at the Vertical Mill top middle portion, and main gear reducer is located at the inboard bottom of separating chamber, and is connected with vertical drive shaft, connects high pressure grinding rolls on the vertical drive shaft; High pressure grinding rolls is located on the wear-resisting mill, is provided with the high pressure vane around the wear-resisting mill, and outer circulation elevator top connects material blanking tube, and the material blanking tube outlet is positioned at the Vertical Mill top middle portion; Material blanking tube is provided with the lock feeding device, and lock feeding device top is provided with the charging tramp iron separator, and separating chamber top is powder-separating area, is provided with wind blade around the powder-separating area; Separating chamber's top middle portion is provided with drive motors, and drive motors is connected with the reductor main shaft, and the separating chamber outside is uniformly distributed with four cyclone separators; Cyclone separator top is connected with separating chamber top, and the cyclone separator bottom is provided with fine powder collector, and the fine powder collector lower end is provided with air valve II; Air valve II lower end is product outlet, meal collection cone during the powder-separating area below is provided with, and middle meal collection cone is connected with logical powder pipeline; Logical powder pipeline slips to grinding external outer circulation elevator charging aperture, and its end is provided with air valve I, and air valve I lower end is provided with the pipeline tramp iron separator; Pipeline tramp iron separator lower end is provided with slag-drip opening, and outer circulation elevator side is provided with device for transporting objects, and high pressure positive blower is connected with blower motor; The air inlet of high pressure positive blower is located at the separating chamber bottom, return air duct one termination high pressure positive blower, and the other end is connected with the cyclone separator top respectively.
The know-why that this equipment adopts is: powder concentrator, blower fan, elevator are all selected existing equipment for use, and the material that feed proportioning system is prepared feeds elevator through device for transporting objects, promote through elevator; And drop on mill central authorities through material blanking tube; Under the effect of distribution device, material moves to wear-resisting mill edge, receives high pressure grinding rolls in the abrasive dust district and mills; Be equipped with tramp iron separator on device for transporting objects and the material blanking tube, material is carried out preliminary deironing; Material after the pulverizing is blown afloat by the high velocity air that high pressure positive blower produces at the mill edge; Oarse-grained meal falls back on the mill grinding again, and most of powder is brought to powder concentrator by air-flow and carries out coarse and fine separation, and dust-contained airflow is under the effect of plane eddy current; Middle meal receives action of centrifugal force; After the wind blade wall collides, loses kinetic energy, slide, fall into the meal collection cone along wall; " the middle meal " that sub-elects slips to mill through logical powder pipeline, behind air valve, gets into the pipeline tramp iron separator of below, discharged by slag-drip opening through the isolated iron tramp of tramp iron separator, and rest materials gets into the circularly enhancing machine, carries out grinding in the feeding mill again, repeats above-mentioned steps; " fine powder " that sub-elects gets in the cyclone separator that is uniformly distributed with all around with air-flow, is slipped to subsequently in the fines collection device to be collected, and is finished product, and clean gas flow gets into the high pressure positive blower circulation, gets into once more and mills.
The utility model beneficial effect is: hold concurrently grinding, deironing and classifying equipoment of outer circulation deironing grinding process is one; Employing rolls material bed grinding technology, realizes particle classifying at device interior, realizes circulation deferrization in device external; With traditional Vertical Mill mill rotate, grinding roller is driven changes that mill is motionless, grinding roller rolls into; Reduce driving hard, good rigidly reduces improper vibrations; On the grinding roller that rolls, pressurize and roll, make grinding pressure than traditional raising 3-4 doubly, mill efficiency is high, and performance in small, broken bits is good; On-load pressure is at the inner autodigestion of Vertical Mill, and the basis requires low, and civil engineering input cost is little; Vertical Mill and eddy current powder concentrator are combined into from the classification internal circulation system, reasonable distribution, and the cement granules circle coefficient is high, improves each age strength of cement, and high efficiency is safeguarded simple; Adopt the outer circulation deferrization process, in time get rid of iron tramp, reduce the grinding roller wearing and tearing; The indoor uniform distribution device that is provided with of grinding can form uniform and stable material bed on mill.
Description of drawings
Be to combine accompanying drawing and embodiment that the utility model is further described below:
It among the figure a kind of outer circulation deironing milling equipment structural representation;
In the drawings: meal collection cone, 17 separating chamber, 18 fine powder collectors, 19 air valve II, 20 return air ducts, 21 product outlets, 22 high pressure positive blowers, 23 blower motors in 1 device for transporting objects, 2 slag-drip openings, 3 pipeline tramp iron separators, 4 air valve I, 5 main gear reducers, 6 wear-resisting mills, 7 high pressure vanes, 8 high pressure grinding rolls, 9 powder-separating areas, 10 lock feeding devices, 11 outer circulation elevators, 12 charging tramp iron separators, 13 reductors, 14 drive motors, 15 wind blades, 16.
The specific embodiment
In the drawings, Vertical Mill top connects powder concentrator, establishes the fines collection device around the powder concentrator, and fan outlet connects the Vertical Mill bottom; Return air duct connects the powder concentrator top, the terminal powder pipeline of connecting of the middle meal collection cone of powder concentrator, and logical tube cell road junction connects the elevator charging aperture, and the elevator top connects material blanking tube; The material blanking tube outlet is positioned at the Vertical Mill top middle portion, and main gear reducer 5 is located at separating chamber 17 inboard bottoms, and is connected with vertical drive shaft; Connect high pressure grinding rolls 8 on the vertical drive shaft, high pressure grinding rolls 8 is located on the wear-resisting mill 6, is provided with high pressure vane 7 around the wear-resisting mill 6; Outer circulation elevator 11 tops connect material blanking tube, and the material blanking tube outlet is positioned at the Vertical Mill top middle portion, and material blanking tube is provided with lock feeding device 10; Lock feeding device 10 tops are provided with charging tramp iron separator 12, and separating chamber 17 tops are powder-separating area 9, are provided with wind blade 15 around the powder-separating area 9; Separating chamber's 17 top middle portion are provided with drive motors 14, and drive motors 14 is connected with reductor 13 main shafts, and separating chamber 17 outsides are uniformly distributed with four cyclone separators; Cyclone separator top is connected with separating chamber 17 tops, and the cyclone separator bottom is provided with fine powder collector 18, and fine powder collector 18 lower ends are provided with air valve II19; Air valve II19 lower end is product outlet 21, and powder-separating area 9 belows are provided with middle meal collection cone 16, and middle meal collection cone 16 is connected with logical powder pipeline; Logical powder pipeline slips to grinding external outer circulation elevator 11 charging apertures, and its end is provided with air valve I4, and air valve I4 lower end is provided with pipeline tramp iron separator 3; Pipeline tramp iron separator 3 lower ends are provided with slag-drip opening 2, and outer circulation elevator 11 sides are provided with device for transporting objects 1, and high pressure positive blower 22 is connected with blower motor 23; The air inlet of high pressure positive blower 22 is located at separating chamber 17 bottoms, return air duct 20 1 termination high pressure positive blowers 22, and the other end is connected with the cyclone separator top respectively.
Hold concurrently grinding, deironing and classifying equipoment of outer circulation deironing grinding process is one, and Vertical Mill top connects powder concentrator, establishes the fines collection device around the powder concentrator; Fan outlet connects the Vertical Mill bottom; Return air duct 20 connects the powder concentrator top, the middle meal collection cone 16 terminal powder pipelines of connecting of powder concentrator, and logical tube cell road junction connects the elevator charging aperture; The elevator top connects material blanking tube, and the material blanking tube outlet is positioned at the Vertical Mill top middle portion.The material that feed proportioning system is prepared feeds elevator through device for transporting objects 1; Promote through elevator, and drop on mill central authorities, under the effect of distribution device through material blanking tube; Material moves to wear-resisting mill 6 edges; Receive high pressure grinding rolls 8 in the abrasive dust district and mill, be equipped with tramp iron separator on device for transporting objects 1 and the material blanking tube, material is carried out preliminary deironing; Material after the pulverizing is blown afloat by the high velocity air that high pressure positive blower 22 produces at the mill edge; Oarse-grained meal falls back on the mill grinding again, and most of powder is brought to powder concentrator by air-flow and carries out coarse and fine separation, and dust-contained airflow is under the effect of plane eddy current; Middle meal receives action of centrifugal force; After wind blade 15 walls collide, lose kinetic energy, slide, fall into meal collection cone 16 along wall; " the middle meal " that sub-elects slips to mill through logical powder pipeline; Behind air valve I4, get into the pipeline tramp iron separator 3 of below, discharged by slag-drip opening 2 through the isolated iron tramp of tramp iron separator, rest materials gets into outer circulation elevator 11; Carry out grinding in the feeding mill again, repeat above-mentioned steps; " fine powder " that sub-elects gets in the cyclone separator that is uniformly distributed with all around with air-flow, is slipped to subsequently in the fines collection device to be collected, and is finished product, and clean gas flow gets into high pressure positive blower 22 circulations, gets into once more and mills.
Rolling grinding tool has the advantage of vertical mill and roll squeezer to overcome its defective again simultaneously, has improved capacity usage ratio, has reduced the loss of iron and steel in the grinding process.This technology puts on the pressure on the pressure roller to the grinding pressure of material from the deadweight and the spring of pressure roller; As long as pressure roller is applied to the intensity of the stress of material greater than material; Just can or crack, promote the energy that abrasive body consumed when ball mill is worked thereby saved the material crushing; The structure that rolls mill has the selection grading to the material of different-grain diameter; And can drag plus-pressure continuously; There is Continuous Tracking to pulverize effect to individual particle, improved crush efficiency, can realize that thin layer rolls simultaneously; Do not have the rely material bed effect of work of roll squeezer, saved the energy loss that factors such as material bed precommpression cause; Can in grinding machine, the automatic self-loopa of repeated multiple times roll, more much higher than the operating efficiency of roll squeezer, and roll linear velocity doubly than the fast 2-3 of roll squeezer; Grinding rolls the total operating pressure that has reduced pressure roller owing to repeatedly circulate; And the mechanism pulverized of material bed make pressure roller pressure all act on material bed on; Avoided pressure roller to contact with the direct of mill; Adopt the outer circulation deferrization process simultaneously, in time the iron tramp in the powder is got rid of, thereby reduced the loss of iron and steel.
The utility model can also have other embodiments, and the technical scheme that equal replacement of all employings or equivalent transformation form all drops within the scope of the utility model requirement protection.
Claims (1)
1. an outer circulation deironing milling equipment is made up of Vertical Mill, powder concentrator, blower fan, elevator, and it is characterized in that: Vertical Mill top connects powder concentrator, establishes the fines collection device around the powder concentrator; Fan outlet connects the Vertical Mill bottom, and return air duct connects the powder concentrator top, the terminal powder pipeline of connecting of the middle meal collection cone of powder concentrator, and logical tube cell road junction connects the elevator charging aperture; The elevator top connects material blanking tube, and the material blanking tube outlet is positioned at the Vertical Mill top middle portion, and main gear reducer is located at the inboard bottom of separating chamber, and is connected with vertical drive shaft; Connect high pressure grinding rolls on the vertical drive shaft, high pressure grinding rolls is located on the wear-resisting mill, is provided with the high pressure vane around the wear-resisting mill; Outer circulation elevator top connects material blanking tube, and the material blanking tube outlet is positioned at the Vertical Mill top middle portion, and material blanking tube is provided with the lock feeding device; Lock feeding device top is provided with the charging tramp iron separator, and separating chamber top is powder-separating area, is provided with wind blade around the powder-separating area; Separating chamber's top middle portion is provided with drive motors, and drive motors is connected with the reductor main shaft, and the separating chamber outside is uniformly distributed with four cyclone separators; Cyclone separator top is connected with separating chamber top, and the cyclone separator bottom is provided with fine powder collector, and the fine powder collector lower end is provided with air valve; The air valve lower end is product outlet, meal collection cone during the powder-separating area below is provided with, and middle meal collection cone is connected with logical powder pipeline; Logical powder pipeline slips to grinding external outer circulation elevator charging aperture, and its end is provided with air valve, and the air valve lower end is provided with the pipeline tramp iron separator; Pipeline tramp iron separator lower end is provided with slag-drip opening, and outer circulation elevator side is provided with device for transporting objects, and high pressure positive blower is connected with blower motor; The air inlet of high pressure positive blower is located at the separating chamber bottom, return air duct one termination high pressure positive blower, and the other end is connected with the cyclone separator top respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120165774U CN202137014U (en) | 2011-05-15 | 2011-05-15 | Outer circulation deironing grinding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120165774U CN202137014U (en) | 2011-05-15 | 2011-05-15 | Outer circulation deironing grinding equipment |
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| Publication Number | Publication Date |
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| CN202137014U true CN202137014U (en) | 2012-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120165774U Expired - Lifetime CN202137014U (en) | 2011-05-15 | 2011-05-15 | Outer circulation deironing grinding equipment |
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| CN (1) | CN202137014U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641771A (en) * | 2012-04-28 | 2012-08-22 | 济南重工股份有限公司 | Coarse powder returning device of mill |
| CN102888472A (en) * | 2012-10-12 | 2013-01-23 | 山西太钢不锈钢股份有限公司 | Method for enhancing grade of vertical mill return iron powder |
| CN103949320A (en) * | 2014-04-29 | 2014-07-30 | 高县天顺建材有限责任公司 | Three-separation type high-fineness powder grinding process |
| CN104128240A (en) * | 2014-07-29 | 2014-11-05 | 浙江工业大学 | Circulating type powder grinding device |
| CN104907150A (en) * | 2015-05-05 | 2015-09-16 | 铜陵海源超微粉体有限公司 | High-moisture vertical mill drying in-series grinding process |
| CN105642408A (en) * | 2016-03-22 | 2016-06-08 | 中材装备集团有限公司 | Novel vertical roll mill with grinded powder outward-guide mechanism |
| CN106040406A (en) * | 2016-07-26 | 2016-10-26 | 新乡市长城机械有限公司 | Slag vertical mill external circulation material no-flying-dust conveying and deironing system |
| CN107930777A (en) * | 2017-12-22 | 2018-04-20 | 李文志 | A kind of novel vertical flour mill |
| CN115888910A (en) * | 2022-12-02 | 2023-04-04 | 大峘集团有限公司 | Vertical mill device capable of separating coarse powder on line |
-
2011
- 2011-05-15 CN CN201120165774U patent/CN202137014U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102641771A (en) * | 2012-04-28 | 2012-08-22 | 济南重工股份有限公司 | Coarse powder returning device of mill |
| CN102888472A (en) * | 2012-10-12 | 2013-01-23 | 山西太钢不锈钢股份有限公司 | Method for enhancing grade of vertical mill return iron powder |
| CN103949320A (en) * | 2014-04-29 | 2014-07-30 | 高县天顺建材有限责任公司 | Three-separation type high-fineness powder grinding process |
| CN103949320B (en) * | 2014-04-29 | 2016-10-12 | 高县天顺建材有限责任公司 | Three separate type fine-grinding techniques |
| CN104128240A (en) * | 2014-07-29 | 2014-11-05 | 浙江工业大学 | Circulating type powder grinding device |
| CN104907150A (en) * | 2015-05-05 | 2015-09-16 | 铜陵海源超微粉体有限公司 | High-moisture vertical mill drying in-series grinding process |
| CN105642408A (en) * | 2016-03-22 | 2016-06-08 | 中材装备集团有限公司 | Novel vertical roll mill with grinded powder outward-guide mechanism |
| CN106040406A (en) * | 2016-07-26 | 2016-10-26 | 新乡市长城机械有限公司 | Slag vertical mill external circulation material no-flying-dust conveying and deironing system |
| CN107930777A (en) * | 2017-12-22 | 2018-04-20 | 李文志 | A kind of novel vertical flour mill |
| CN115888910A (en) * | 2022-12-02 | 2023-04-04 | 大峘集团有限公司 | Vertical mill device capable of separating coarse powder on line |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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Granted publication date: 20120208 |
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| CX01 | Expiry of patent term |