CN103639018A - Self-adaptive vibration accumulation and energy supply high-efficiency vertical roller mill - Google Patents

Self-adaptive vibration accumulation and energy supply high-efficiency vertical roller mill Download PDF

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Publication number
CN103639018A
CN103639018A CN201310690949.4A CN201310690949A CN103639018A CN 103639018 A CN103639018 A CN 103639018A CN 201310690949 A CN201310690949 A CN 201310690949A CN 103639018 A CN103639018 A CN 103639018A
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CN
China
Prior art keywords
grinding
mill
housing
vane
energy supply
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CN201310690949.4A
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Chinese (zh)
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CN103639018B (en
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赵京年
杨增福
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LINYI BOXIN MACHINERY Co Ltd
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LINYI BOXIN MACHINERY Co Ltd
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Publication of CN103639018A publication Critical patent/CN103639018A/en
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Publication of CN103639018B publication Critical patent/CN103639018B/en
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Abstract

The invention relates to a self-adaptive vibration accumulation and energy supply high-efficiency vertical roller mill which comprises a hydraulic transmission system, an intelligent control system, a stand (1), a transmission device (2) and a speed reducing mechanism (6), wherein the transmission device (2) and the speed reducing mechanism (6) are arranged on the stand (1); an output end of the speed reducing mechanism (6) is provided with a grinding table device (15); an air ring (8) is arranged at the excircle of the grinding table device (15) and at an upper opening of an air inlet duct (7) communicated with an air inlet pipe (5); a plurality of grinding roller devices (10) are arranged above the grinding table device (15) by a mill door arranged on a lower shell (11); a rocker arm (9) is arranged at the outer ends of the grinding roller devices (10); one ends of a pressurizing oil cylinder (3) and a magnetic fluid damping adjustment device (4) are respectively connected with the rocker arm (9), and the other ends of the pressurizing oil cylinder (3) and the magnetic liquid damping adjustment device (4) are respectively connected with the stand (1); the upper end of a middle shell (14) is provided with a powder concentrator (12). The self-adaptive vibration accumulation and energy supply high-efficiency vertical roller mill has the advantages that the extrusion energy and the impact energy are efficiently utilized, the vibration intensity of a grinding host machine can be reduced, the grinding efficiency is improved, the grinding energy consumption is reduced, the stability of equipment is improved, the service life of the equipment is prolonged, and the running cost is lowered.

Description

The poly-energy supply high-efficiency vertical roller mill that shakes of self adaptation
Technical field
Self adaptation is gathered the energy supply high-efficiency vertical roller mill that shakes, and belongs to the milling equipment of mine, electric power, building material cement industry, is specifically related to a kind of vertical roll grinder.
Background technology
Vertical roll grinder is compared with ball mill, high with its mill efficiency, energy consumption is low, compact conformation, technology arrangement is convenient, and technological process is simple, and floor space is little, drying capacity is large, permission mill feed material size is large, and to mill feed material strong adaptability, negative-pressure operation is without dust leakage, the series of advantages such as noise is low, are more and more subject to the attention of domestic and international mine, electric power, building materials, cement industry.But because vertical roll grinder is its main process equipment in the application of multiple industry, its grinding process is all its important step and has the features such as large time delay, non-linear, close coupling, so be all the Focal point and difficult point problem during vertical roll grinder grinding process is controlled all the time, this has just not only proposed higher requirement to grinding process process control technology, and the structural design of vertical roller mill has also proposed higher requirement with optimizing; Application practice proves that vertical roll grinder is more responsive to stability and equipment self vibration of formation powder abrasive bed, and unstability and self the vibrating of vertical roll grinder of a large amount of cases explanation powder abrasive beds are all easily caused equipment fault, and are difficult in good time security control; Having is exactly that the powder selection device of vertical roll grinder also can not get effective control to the grain shape of finished product powder and grating again, and above these problems are all in vertical roll grinder evolution, to need the knotty problem that solves.
Summary of the invention
The technical solution adopted for the present invention to solve the technical problems is: the poly-energy supply high-efficiency vertical roller mill that shakes of self adaptation, comprise Hydraulic Power Transmission System and intelligence control system and frame and rack-mounted transmission device and reducing gear, the output of reducing gear is installed millstone device, lower house is arranged on frame top, vane is arranged on the place suitable for reading of the air inlet duct of millstone device cylindrical He Yu blast pipe UNICOM, a plurality of Burnisher apparatus are arranged on the top of millstone device by the grinding door on lower house, rocking arm is installed in the outer end of Burnisher apparatus, pressurization oil cylinder and magnetic fluid damping regulator one end connect with rocking arm respectively, the other end connects with frame respectively, powder selection device is installed in the upper end of middle shell, the middle part of powder selection device is provided with intermediate feed pipe.
It is characterized in that: described Burnisher apparatus comprises that grinding roller body connects with shaft of grinding roller leading section by dynamic and hydrostatic bearing, install adjusting sleeve and thrust dynamic and hydrostatic bearing and gland dynamic and hydrostatic bearing adjustment is located at grinding roller body and shaft of grinding roller large awl end place, lining ring is arranged on grinding roller body by briquetting, the outer ring of lining ring is provided with wearing layer and surface is logarithm spiral camber, piston rod is sleeved on shaft of grinding roller, location cylinder barrel is sleeved on piston rod by fairlead, between piston rod and location cylinder barrel, be provided with piston I and piston II, rocking arm is sleeved on the cylinder barrel of location, a plurality of grinding rollers form main, auxiliary grinding roller, and physical dimension is identical to be crisscross arranged, at mill circumferential edge place, move, by adjusting the pressurization program of Hydraulic Power Transmission System in charger, switch master, the work functions of auxiliary grinding roller realizes main, auxiliary grinding roller function transposing.
Described millstone device comprises the liner plate that install mill and mill upper end, curved surface on liner plate is logarithm spiral camber, the logarithm spiral camber integral body on grinding roller lining ring surface is 30 ° of tapers, by small end part, it is the multistage curved surface of the logarithm spiral camber of multistage convex-concave cambered surface and mill, be that outer ring is horizontal linear, middle part is and-5 °~-10 ° inclined-planes of horizontal plane inclination, inner circle is concave arc curved surface, the version matching, material is first stirred before entering high pressure abrasive areas, coarse crushing, degassed and pre-compacted, its whole process is for automatically carrying out step by step, from structure, guarantee that material forms stable powder abrasive bed.
Described magnetic fluid damping regulator comprises working cylinder, piston, piston rod, damp channel, magnetic flow liquid, coil.Magnetic fluid damping regulator can detect the vibration parameters with transmission equipment running status, it can receive the instruction of intelligence control system simultaneously, automatically adjust self damping characteristic in good time, the equipment of preventing resonates, can change again damped coefficient in good time and produce the useful characterisitic parameter that is tending towards critical resonances being applicable to simultaneously, with powder abrasive bed in regulation and control vertical roll grinder grinding process, grind form, grinding component can be realized trend resonances pressure grinding, also can realize trend antiresonance state pressure grinding, can automatically adjust distributing mode, stablize powder abrasive bed.
Described powder selection device comprises housing and is arranged on the fine powder outlet conduit on housing, the middle part of housing is provided with feed pipe, rotor transmission mechanism is installed on the top of housing, the end of rotor transmission mechanism connects with rotor, rotor is provided with many group rotors blade along circumference, in housing, be provided with the guide vane of three grades of angle adjustables, wherein the lower end of one-level guide vane and secondary guide vane is contained in respectively on the support in housing, upper end is contained in the top of housing and connects with connecting rod rotating mechanism respectively, one end of three grades of guide vanes is bearing in housing, the other end connects in hull outside and with motor transmission mechanism along the radial support of housing, it is adjustable that the rotor at multilevel deflector and change spacing change inclination angle has been realized multithread state, can realize the special grinding process requirement of accurate control finished product grain composition and granule-morphology.
Described vane comprises vane frame and is arranged on the streamline vane on vane frame by vane axle.Vane adopts low speed thin airfoil structure, can reduce mill inner ventilation resistance, reduces mill inner ventilation energy consumption.
Compared with prior art, the beneficial effect that the poly-energy supply high-efficiency vertical roller mill that shakes of self adaptation of the present invention has is:
1. these facility have foundation by the physics of grinding material, particle distribution range and granule-morphology that chemical characteristic and finished product require, the vibration characteristics producing during automatically according to grinding takes different powder abrasive beds to grind form, grinding component can be realized trend resonances pressure grinding, also can realize trend antiresonance state pressure grinding, can automatically adjust distributing mode, stablize powder abrasive bed, absorb and utilize the vibratory impulse energy in grinding process process, efficient extruding energy and the impact energy utilized, reduce the vibration severity of grinding main process equipment, improve mill efficiency, reduce grinding energy, the risk bumping between grinding component while evading high vibration, improve stabilization of equipment performance and service life, reduce operating cost.
2. vane adopts low speed thin airfoil, and blade adopts streamlined structure, can reduce mill inner ventilation resistance, reduces mill inner ventilation energy consumption.
3. adopt multithread state adjustable high-efficiency to select powder technology, can realize the special grinding process requirement of accurate control finished product grain composition and granule-morphology.
Accompanying drawing explanation:
Fig. 1 is the structural representation of poly-energy supply high-efficiency vertical roller mill (central feed tube) that shake of self adaptation of the present invention.
Fig. 2 is the structural representation of poly-energy supply high-efficiency vertical roller mill (the side feed pipe) that shake of self adaptation of the present invention.
Fig. 3 is poly-the shake millstone device of energy supply high-efficiency vertical roller mill and the structural representation of reducing gear of self adaptation of the present invention.
Fig. 4 is the structural representation of the Burnisher apparatus of the poly-energy supply high-efficiency vertical roller mill that shakes of self adaptation of the present invention.
Fig. 5 is the structural representation of the magnetic fluid damping regulator of the poly-energy supply high-efficiency vertical roller mill that shakes of self adaptation of the present invention.
Fig. 6 is the structural representation of the powder selection device of the poly-energy supply high-efficiency vertical roller mill that shakes of self adaptation of the present invention.
Fig. 7 is the structural representation of the vane of the poly-energy supply high-efficiency vertical roller mill that shakes of self adaptation of the present invention.
Wherein: 1 frame, 2 transmission devices, 3 pressurization oil cylinders, 4 magnetic fluid damping regulators, 5 blast pipes, 6 reducing gears, 7 air inlet ducts, 8 vanes, 9 rocking arms, 10 Burnisher apparatus, 11 lower houses, 12 powder selection devices, 13 intermediate feed pipes, 14 middle shells, 15 millstone devices, 16 logarithm spiral cambers, 17 liner plates, 18 mills, 19 dynamic and hydrostatic bearings, 20 ring gears, 21 bodies, 22 pinion I, 23 gear wheels, 24 axles, 25 pinion II, 26 power shafts, 27 bearings, 28 bearings, 29 glands, 30 roller mill axles, 31 dynamic and hydrostatic bearings, 32 grinding roller bodies, 33 trim rings, 34 lining rings, 35 logarithm spiral cambers, 36 adjusting sleeves, 37 thrust dynamic and hydrostatic bearings, 38 fairleads, 39 piston I, 40 piston II, 41 location cylinder barrels, 42 piston rods, 43 working cylinders, 44 damp channels, 45 magnetic flow liquids, 46 coils, 47 pistons, 48 piston rods, 49 taper tremie pipes, 50 housings, 51 motor transmission mechanisms, 52 one-level guide vanes, 53 secondary guide vanes, 54 3 grades of guide vanes, 55 connecting rod rotating mechanisms, 56 rotor blades, 57 rotors, 58 fine powder outlet conduits, 59 feed pipes, 60 rotor transmission mechanisms, 61 vane framves, 62 blades, 63 vane axles.
The specific embodiment:
Fig. 1 ~ 7th, the most preferred embodiment of the poly-energy supply high-efficiency vertical roller mill that shakes of self adaptation of the present invention, below in conjunction with accompanying drawing 1 ~ 7, the present invention will be further described.
With reference to Fig. 1: the poly-energy supply high-efficiency vertical roller mill that shakes of self adaptation comprises Hydraulic Power Transmission System and intelligence control system and frame 1 and is arranged on transmission device 2 and the reducing gear 6 in frame 1, the output of reducing gear 6 is installed millstone device 15, lower house 11 is arranged on the top of frame 1, vane 8 be arranged on millstone device 15 cylindricals and with the place suitable for reading of the air inlet duct 7 of blast pipe 5 UNICOMs, a plurality of Burnisher apparatus 10 are arranged on the top of millstone device 15 by the grinding door on lower house 11, rocking arm 9 is installed in the outer end of Burnisher apparatus 10, pressurization oil cylinder 3 and magnetic fluid damping regulator 4 one end connect with rocking arm 9 respectively, the other end connects with frame 1 respectively, powder selection device 12 is installed in the upper end of middle shell 14, the middle part of powder selection device 12 is provided with intermediate feed pipe 13.
With reference to Fig. 4 Burnisher apparatus 10, comprise that grinding roller body 32 connects with shaft of grinding roller 30 leading sections by dynamic and hydrostatic bearing 31, grinding roller body 32, with shaft of grinding roller 30 large awl end places, adjusting sleeve 36 is installed and end face dynamic and hydrostatic bearing 37 is adjusted location with 29 pairs of dynamic and hydrostatic bearings of gland 31, lining ring 34 is arranged on grinding roller body 32 by trim ring 33, the outer ring of lining ring 34 is provided with wearing layer and surface is logarithm spiral camber 35, piston rod 42 is sleeved on shaft of grinding roller 30, location cylinder barrel 41 is sleeved on piston rod 42 by fairlead 38, between piston rod 42 and location cylinder barrel 41, be provided with piston I 39 and piston II 40, rocking arm 9 is sleeved on the cylinder barrel 41 of location.
With reference to Fig. 3 millstone device 15, comprise the liner plate 17 that install mill 18 and mill 18 upper ends, the curved surface of liner plate 17 is logarithm spiral camber 16, for reducing the height of mill 18, improve the stability of mill 18, in mill 18 bottoms, reducing gear 6 is installed and is comprised ring gear 20, by dynamic and hydrostatic bearing 19 and body 21, move and coordinate connection, power shaft 26 is bearing in body 21 by bearing 27, power shaft 26 fills pinion II 25 by key, axle 24 upper, lower end is bearing in body 21 by bearing 28, the bottom dress gear wheel 23 of axle 24 and 25 engagements of pinion II, pinion I 22 ring gear 20 engagements on axle 24 tops.
With reference to Fig. 5 magnetic fluid damping regulator 4, comprise working cylinder 43, piston 47, piston rod 48, damp channel 44, magnetic flow liquid 45, coil 46.
With reference to Fig. 6 powder selection device 12, comprise housing 50 and be arranged on the fine powder outlet conduit 58 on housing 50, the middle part of housing 50 is provided with feed pipe 59, rotor transmission mechanism 60 is installed on the top of housing 50, rotor transmission mechanism 60 ends connect with rotor 57, rotor 57 is provided with many group rotors blade 56 along circumference, in housing 50, be provided with the guide vane of three grades of angle adjustables, wherein the lower end of one-level guide vane 52 and secondary guide vane 53 is contained in respectively on the support in housing 50, upper end is contained in the top of housing 50, and connect with connecting rod rotating mechanism 55 respectively, one end of three grades of guide vanes 54 is supported in housing 50, the other end along the radial support of housing 50 in housing 50 outsides, and connect with motor transmission mechanism 51.
With reference to Fig. 7 vane 8, comprise vane frame 61 and be arranged on the streamline vane 62 on vane frame 61 by vane axle 63.
Operation principle and the course of work are as follows:
When the poly-energy supply high-efficiency vertical roller mill that shakes of self adaptation starts, Hydraulic Power Transmission System is controlled grinding roller and is lifted, transmission device drives millstone device to rotate by reducing gear, now, by grinding material, by intermediate feed pipe, be sprinkled into mill center, grinding roller is controlled and is fallen by Hydraulic Power Transmission System, start powder grind materials, the logarithm spiral camber integral body of roller surface is 30 ° of tapers, and the multistage curved surface by the multistage convex-concave cambered surface of small end part and the logarithm spiral camber of mill, be that outer ring is horizontal linear, middle part is and horizontal tilt-5 ° ~-10 ° of inclined-planes, inner circle is concave arc curved surface, the mechanism matching, make material before entering high pressure abrasive areas, first stir, coarse crushing, degassed and pre-compacted, whole process is for automatically carrying out step by step, a plurality of grinding rollers form main, auxiliary grinding roller, in servicely can switch master by adjusting the pressurization program of Hydraulic Power Transmission System in charger, the work functions of auxiliary grinding roller, realize main, the function adjustment of auxiliary grinding roller.When grinding roller is joined with mill grinding material, magnetic fluid damping regulator can detect the vibration parameters with transmission equipment running status, automatically adjust self damping characteristic in good time, avoid equipment to occur violent resonance, can change again damped coefficient simultaneously and make it to produce the useful characterisitic parameter that is tending towards critical resonances being applicable to and improve grinding efficiency.By the fine powder of grinding, by introduce air inlet duct by blast pipe, after disperseing, vane entered the hot-air seasoning in grinding machine again, be passed again the wind that fine powder outlet conduit is extracted out, make to grind interior formation negative pressure, with repeatedly being selected powder by the fine powder of grinding by three grades of guide vanes and rotor, to control finished product grain composition and granule-morphology, satisfactory fine powder is drawn out of fine powder outlet conduit with the negative pressure in mill, does not reach the particle of requirement, is subject to the effect of gravity to return to again mill and carries out grinding again.
The above, it is only most preferred embodiment of the present invention, it is not other forms of restriction made for the present invention, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations, for example: the structural representation of poly-energy supply high-efficiency vertical roller mill (the side feed pipe) that shake of self adaptation of the present invention shown in Fig. 2, be exactly on basis of the present invention, by intermediate feed, change side charging into.

Claims (6)

1. the poly-energy supply high-efficiency vertical roller mill that shakes of self adaptation comprises Hydraulic Power Transmission System and intelligence control system and frame 1 and is arranged on transmission device 2 and the reducing gear 6 in frame 1, the output of reducing gear 6 is installed millstone device 15, lower house 11 is arranged on the top of frame 1, vane 8 be arranged on millstone device 15 cylindricals and with the place suitable for reading of the air inlet duct 7 of blast pipe 5 UNICOMs, a plurality of Burnisher apparatus 10 are arranged on the top of millstone device 15 by the grinding door on lower house 11, rocking arm 9 is installed in the outer end of Burnisher apparatus 10, pressurization oil cylinder 3 and magnetic fluid damping regulator 4 one end connect with rocking arm 9 respectively, the other end connects with frame 1 respectively, powder selection device 12 is installed in the upper end of middle shell 14, the middle part of powder selection device 12 is provided with intermediate feed pipe 13.
2. self adaptation according to claim 1 is gathered the energy supply high-efficiency vertical roller mill that shakes, it is characterized in that: described Burnisher apparatus 10 comprises that grinding roller body 32 connects with shaft of grinding roller 30 leading sections by dynamic and hydrostatic bearing 31, grinding roller body 32, with shaft of grinding roller 30 large awl end places, adjusting sleeve 36 is installed and thrust dynamic and hydrostatic bearing 37 is adjusted location with 29 pairs of dynamic and hydrostatic bearings of gland 31, lining ring 34 is arranged in roller mill body 32 by trim ring 33, the outer ring of lining ring 34 is provided with wearing layer and surface is logarithm spiral camber 35, piston rod 42 is sleeved on shaft of grinding roller 30, location cylinder barrel 41 is sleeved on piston rod 42 by fairlead 38, between piston rod 42 and location cylinder barrel 41, be provided with piston I 39 and piston II 40, rocking arm 9 is sleeved on the cylinder barrel 41 of location.
3. the poly-energy supply high-efficiency vertical roller mill that shakes of self adaptation according to claim 1, is characterized in that: millstone device 15 comprises the liner plate 17 that install mill 18 and mill 18 upper ends, and the curved surface of liner plate 17 is logarithm spiral camber 16.
4. self adaptation according to claim 1 is gathered the energy supply high-efficiency vertical roller mill that shakes, it is characterized in that: magnetic fluid damping regulator 4 comprises working cylinder 43, piston 47, piston rod 48, damp channel 44, magnetic flow liquid 45, coil 46, magnetic fluid damping regulator can detect the vibration parameters with transmission equipment running status, it can receive the instruction of intelligence control system simultaneously, automatically adjust self damping characteristic in good time, the equipment of preventing resonates, can change again damped coefficient in good time and produce the useful characterisitic parameter that is tending towards critical resonances being applicable to simultaneously, with powder abrasive bed in regulation and control vertical roll grinder grinding process, grind form, grinding component can be realized trend resonances pressure grinding, also can realize trend antiresonance state pressure grinding, can automatically adjust distributing mode, stablize powder abrasive bed, absorb and utilize the vibratory impulse energy in grinding process process, efficient extruding energy and the impact energy utilized, reduce the vibration severity of grinding main process equipment, improve mill efficiency, reduce grinding energy, the risk bumping between grinding component while evading high vibration, improve stabilization of equipment performance and service life, reduce operating cost.
5. self adaptation according to claim 1 is gathered the energy supply high-efficiency vertical roller mill that shakes, it is characterized in that: powder selection device 12 comprises housing 50 and is arranged on the fine powder outlet conduit 58 on housing 50, the middle part of housing 50 is provided with feed pipe 59, rotor transmission mechanism 60 is installed on the top of housing 50, rotor transmission mechanism 60 ends connect with rotor 57, rotor 57 is provided with many group rotors blade 56 along circumference, in housing 50, be provided with the guide vane of three grades of angle adjustables, wherein the lower end of one-level guide vane 52 and secondary guide vane 53 is contained in respectively on the support in housing 50, upper end is contained in the top of housing 50, and connect with connecting rod rotating mechanism 55 respectively, one end of three grades of guide vanes 54 is supported in housing 50, the other end along the radial support of housing 50 in housing 50 outsides, and connect with motor transmission mechanism 51.
6. self adaptation according to claim 1 is gathered the energy supply high-efficiency vertical roller mill that shakes, it is characterized in that: vane 8 comprises vane frame 61 and is arranged on the streamline vane 62 on vane frame 61 by vane axle 63, vane adopts low speed thin airfoil structure, can reduce mill inner ventilation resistance, reduce mill inner ventilation energy consumption.
CN201310690949.4A 2013-12-17 2013-12-17 Adaptive vibration accumulation and energy supply vertical roll grinder Active CN103639018B (en)

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CN103639018B CN103639018B (en) 2017-11-10

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104907128A (en) * 2015-06-18 2015-09-16 温传岳 Disintegrating machine and disintegrating method thereof
CN105170244A (en) * 2015-09-02 2015-12-23 江苏富勒水泵系统有限公司 Superfine powder-separation vertical roller mill
CN105944821A (en) * 2016-06-30 2016-09-21 湖州丰盛新材料有限公司 Device for adjusting air speed of air inlet of roller mill
CN105964343A (en) * 2016-06-30 2016-09-28 湖州丰盛新材料有限公司 Air speed adjustable and reverse blow sealed hot air circulating powder selecting device
CN106000615A (en) * 2016-06-30 2016-10-12 湖州丰盛新材料有限公司 Hot air circulation powder selecting device with adjustable wind speed
CN106000549A (en) * 2016-06-30 2016-10-12 湖州丰盛新材料有限公司 Rolling device with adjustable wind speed and reverse air blowing seal structure
CN106522005A (en) * 2016-12-08 2017-03-22 中国宣纸股份有限公司 Material grinding device for paper pulp material
CN109092446A (en) * 2018-08-20 2018-12-28 东莞市松研智达工业设计有限公司 A kind of vertical mill mill of the manufacture cement powder applied to architectural engineering
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
CN110801909A (en) * 2019-11-14 2020-02-18 中材(天津)粉体技术装备有限公司 Vertical roller grinding method for grinding dry powdery material

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CN102008987A (en) * 2010-10-27 2011-04-13 溧阳中材重型机器有限公司 Vertical mill with vibration damping hydraulic cylinder
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104907128A (en) * 2015-06-18 2015-09-16 温传岳 Disintegrating machine and disintegrating method thereof
CN105170244A (en) * 2015-09-02 2015-12-23 江苏富勒水泵系统有限公司 Superfine powder-separation vertical roller mill
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
CN105964343A (en) * 2016-06-30 2016-09-28 湖州丰盛新材料有限公司 Air speed adjustable and reverse blow sealed hot air circulating powder selecting device
CN106000615A (en) * 2016-06-30 2016-10-12 湖州丰盛新材料有限公司 Hot air circulation powder selecting device with adjustable wind speed
CN106000549A (en) * 2016-06-30 2016-10-12 湖州丰盛新材料有限公司 Rolling device with adjustable wind speed and reverse air blowing seal structure
CN105944821A (en) * 2016-06-30 2016-09-21 湖州丰盛新材料有限公司 Device for adjusting air speed of air inlet of roller mill
CN106522005A (en) * 2016-12-08 2017-03-22 中国宣纸股份有限公司 Material grinding device for paper pulp material
CN109092446A (en) * 2018-08-20 2018-12-28 东莞市松研智达工业设计有限公司 A kind of vertical mill mill of the manufacture cement powder applied to architectural engineering
CN110801909A (en) * 2019-11-14 2020-02-18 中材(天津)粉体技术装备有限公司 Vertical roller grinding method for grinding dry powdery material

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