CN103537338A - Vertical mill - Google Patents

Vertical mill Download PDF

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Publication number
CN103537338A
CN103537338A CN201310475509.7A CN201310475509A CN103537338A CN 103537338 A CN103537338 A CN 103537338A CN 201310475509 A CN201310475509 A CN 201310475509A CN 103537338 A CN103537338 A CN 103537338A
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China
Prior art keywords
vertical mill
cone
discharger
grinding device
guiding cone
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CN201310475509.7A
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Chinese (zh)
Inventor
张少明
胡民山
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Individual
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Individual
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Priority to CN201310475509.7A priority Critical patent/CN103537338A/en
Publication of CN103537338A publication Critical patent/CN103537338A/en
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Abstract

The invention discloses a vertical mill. The vertical mill comprises a diversion ring (1), an inner cone (4), a two-step sorting device (5), a diversion cone (6), a material stabilization classifier (9) and a discharger (8) and the above members are arranged in the vertical mill. The discharger (8) comprises a pneumatic discharge device and a mechanical discharge device. The material stabilization classifier (9) and the discharger (8) are arranged below the diversion cone (6). The outer side of the diversion cone (6) is provided with the diversion ring (1). The inner cone (4) is arranged in the diversion cone (6). The two-step sorting device (5) is arranged between the inner cone (4) and the diversion cone (6). Through use of the material layer stabilization and rough classification device, the vertical mill solves the problem of confusion and instability of material flows on a raw material bed, realizes rough classification on the materials on the raw material bed, prolongs retention time of the coarse-grained materials on the vertical mill and improves milling efficiency.

Description

A kind of vertical mill grinding device
Technical field
The invention belongs to the grinding device of the industries such as building materials, metallurgy, especially a kind of vertical mill grinding device.
Background technology
Vertical Mill is widely used at cement industry and other industrial department as a kind of equipment of more energy-conservation grinding.As the upgrading substitute products of ball mill, had a great deal ofly, and obtained the effect of obvious energy-saving and emission-reduction.Process is to Vertical Mill Long-term analysis, research, and its comparatively reasonably operation principle (bed of material pulverizing), makes it to have broad application prospects.But we also find that Vertical Mill also has very large energy-saving potential in application, at aspects such as the structure of Vertical Mill, technical process, equipments, there is the space of larger improvement, raising.The Vertical Mill of application is mainly deposited problem in the following areas at present:
1, owing to having problems in structure, cause the discharging of bed chaotic, bed is unstable, discharging short circuit, roller mill separator efficiency is not high, causes circulating load excessive, both wasted the required energy of convey materials, reduced again the operating efficiency of Vertical Mill, also just reduced output, made comprehensive energy consumption increase.
2, Vertical Mill work tolerance is too large, and the pressure of desired gas is higher, has caused mass energy waste.
Summary of the invention
The object of the present invention is to provide a kind of vertical mill grinding device, mainly to improve in existing vertical mill grinding system-based, the circulating fan of original vertical mill system Wind Volume and high pressure is reduced, cutting mode is by original strength carrying mode, change part machinery cutting mode into, on mill, install rough classification device additional, Matter Transfer number of times is reduced; Transform roller mill separator inside, and its grinding efficiency is improved.After improving, vertical mill system air quantity reduces approximately 20~25%, and the pressure loss reduces by 40~45%.Be a kind ofly can further improve vertical mill grinding system effectiveness, reduce grinding pow consumption, the energy-efficient vertical mill grinding system that finished product is easy to adjust.
Technical scheme of the present invention is:
A kind of vertical mill grinding device, it is characterized in that comprising the guide ring 1, inner cone 4, secondary sorting device 5, guiding cone 6 of vertical mill grinding device inside, surely expect clasfficiator 9 and discharger 8, its discharger 8 is the combining form of pneumatic discharging device and mechanical discharging device, described steady material clasfficiator 9 and discharger 8 are arranged on guiding cone 6 belows, guiding cone 6 outsides are provided with guide ring 1, in guiding cone 6, be provided with inner cone 4, between inner cone 4 and guiding cone 6, be provided with secondary sorting device 5.
On described steady material clasfficiator 9, offer a plurality of irregular microscler reverse taper holes, bottom is tooth type structures.
Described discharger 8 parts are pneumatic discharging device, which is provided with a plurality of nozzles, and wide bottom, nozzle segment top is narrow.
Described discharger 8 parts are mechanical discharging device, and it is spatula-like.
Described guide ring 1 connects guide vane 3, and inner cone 4 tops are provided with rotor of powder separator 2.
Described guiding cone 6 belows are provided with mill 10, and mill 10 is provided with grinding roller 7.
Described guiding cone 6 tops connect feed opening 13, and guiding cone 6 bottoms are provided with air inlet 11.
Described guiding cone 6 connects motor 12 by transmission device.
The invention has the beneficial effects as follows:
Vertical mill grinding device of the present invention has solved the problem that technique exists, and has improved device structure, has researched and developed the part key equipment in system.Its technology is to the effect that:
1. vertical mill grinding device of the present invention is set up the stable and rough classification device of the bed of material, has overcome the chaotic unsteady phenomena of Flow of Goods and Materials in feedstock bed, and on material bed, material has been carried out to rough classification, extends the time of staying of coarse fodder on grinding machine, improves mill efficiency.
Due to material Natural classification in flow process on mill, cause the irrationality of material discharging, the result of Natural classification makes above bulk materials concentrates on, below thin material sinks to, the mill that bulk material is above easy to be rotated throws away card, consume strength and do meaningless circulation, and the thin material sinking to is below subject to card collet to stop that blanking is not smooth, prolongation, in the time of staying of card, has reduced grinding effect.In order to stablize the bed of material in card, need install steady material and rough classification device additional, its effect is similar to partition panel and the discharging grate plate of ball mill, in Vertical Mill, also can reduce strength consumption.
2. the mode of movement of vertical mill grinding device change material of the present invention can be saved a large amount of energy consumption.Original strength convey materials, part is used mechanical transmission material instead.After adopting machinery to carry, blower fan acting is mainly used in material drying and fine grained is sent into powder concentrator.Reduce greatly power of fan, reduced installed capacity.The advantage that so not only retains material drying, and fine powder can be taken away by air-flow, after being promoted by bucket elevator compared with meal again in feeding mill.
Therefore suitably strengthen elevator ability, for the conveying of Vertical Mill scum.Do not have elevator must install elevator additional, ability and the mill output of elevator are suitable.
3. vertical mill grinding device mill periphery of the present invention increases fine powder device for discharging, improves mill efficiency and reaches the object that improves output.
Material on mill is through rough classification device, and fines, in bottom, is stopped by mill collet and is difficult for drawing off, and need install discharger additional and in time material be drawn off, to improve mill efficiency.
4. vertical mill grinding device of the present invention is transformed the original powder concentrator of Vertical Mill.According to detecting, after roller mill separator sorting, fall in the material on mill, still contain more qualified fine powder, in order to reduce this part qualified fine powder, again enter mill, need transform powder concentrator grading rotor and interior cone, and increase secondary sorting device, improve classification efficiency and effectiveness of classification.
5, new vertical mill grinding device of the present invention is changed the blower fan of former Wind Volume, high blast.
Main technical-economic index is as follows:
New its technology of vertical mill grinding device, economic indicator of the present invention are as follows:
1, electric energy comprehensive consumption reduces by 20~30% unit products.
The Vertical Mill that the clinker production line of 5000T/d of take is prepared raw material is example, and the 1600~1800KWH. that economizes on electricity per hour as calculated to turn round every year for 7000 hours, and approximately 1,190 ten thousand degree can economize on electricity for 1 year.In 0.5 yuan of every degree electricity, every year because of economize on electricity one can the nearly 6,000,000 yuan of left and right of cost saving.Can reduce discharging every year CO2 10,004 kiloton left and right.
2, unit-hour output can increase by 10% left and right.
Accompanying drawing explanation
Fig. 1 is the structural representation of Vertical Mill of the present invention.
Fig. 2 is the structural representation of pneumatic discharging of the present invention.
Fig. 3 is the structural representation of mechanical discharging of the present invention.
Fig. 4 is the structural representation of rough classification device of the present invention
In figure: 1, guide ring, 2, rotor of powder separator, 3, guide vane, 4, inner cone, 5, secondary sorting device, 6, guiding cone, 7, grinding roller, 8, discharger, 9, surely expect clasfficiator, 10, mill, 11, air inlet, 12, motor, 13, feed opening.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As Fig. 1 to 4, a kind of vertical mill grinding device, it is characterized in that comprising the guide ring 1, inner cone 4, secondary sorting device 5, guiding cone 6 of vertical mill grinding device inside, surely expect clasfficiator 9 and discharger 8, its discharger 8 is the combination of pneumatic discharging device and two kinds of forms of mechanical discharging device, described steady material clasfficiator 9 and discharger 8 are arranged on guiding cone 6 belows, guiding cone 6 outsides are provided with guide ring 1, in guiding cone 6, be provided with inner cone 4, between inner cone 4 and guiding cone 6, be provided with secondary sorting device 5.
On steady material clasfficiator 9, offer a plurality of irregular microscler reverse taper holes, bottom is tooth type structures.
Discharger 8 parts are pneumatic discharging device, which is provided with a plurality of nozzles, and wide bottom, nozzle segment top is narrow.When discharger 8 parts are mechanical type discharger, it is spatula-like.
Guide ring 1 connects guide vane 3, and inner cone 4 tops are provided with rotor of powder separator 2.
Guiding cone 6 belows are provided with mill 10, and mill 10 is provided with grinding roller 7.
Guiding cone 6 tops connect feed opening 13, and guiding cone 6 bottoms are provided with air inlet 11.
Guiding cone 6 connects motor 12 by transmission device.
Embodiment recited above is described the preferred embodiment of the present invention; not the spirit and scope of the present invention are limited; do not departing under design concept prerequisite of the present invention; various modification and improvement that in this area, common engineers and technicians make technical scheme of the present invention; all should fall into protection scope of the present invention, the technology contents that the present invention asks for protection is all documented in claims.

Claims (8)

1. a vertical mill grinding device, it is characterized in that comprising the guide ring (1) of vertical mill grinding device inside, inner cone (4), secondary sorting device (5), guiding cone (6), steady material clasfficiator (9) and discharger (8), its discharger (8) is the combining form of pneumatic discharging device and mechanical discharging device, described steady material clasfficiator (9) and discharger (8) are arranged on guiding cone (6) below, guiding cone (6) outside is provided with guide ring (1), in guiding cone (6), be provided with inner cone (4), between inner cone (4) and guiding cone (6), be provided with secondary sorting device (5).
2. according to a kind of vertical mill grinding device described in claims 1, it is characterized in that offering a plurality of irregular microscler reverse taper holes on described steady material clasfficiator (9), bottom is tooth type structures.
3. according to a kind of vertical mill grinding device described in claims 1, it is characterized in that described discharger (8) part, for pneumatic discharging device, which is provided with a plurality of nozzles, wide bottom, nozzle segment top is narrow.
4. according to a kind of vertical mill grinding device described in claims 1, it is characterized in that described discharger (8) part is for mechanical discharging device, it is spatula-like.
5. according to a kind of vertical mill grinding device described in claims 1, it is characterized in that described guide ring (1) connects guide vane (3), inner cone (4) top is provided with rotor of powder separator (2).
6. according to a kind of vertical mill grinding device described in claims 1, it is characterized in that described guiding cone (6) below is provided with mill (10), mill (10) is provided with grinding roller (7).
7. according to a kind of vertical mill grinding device described in claims 1, it is characterized in that described guiding cone (6) top connects feed opening (13), guiding cone (6) bottom is provided with air inlet (11).
8. according to a kind of vertical mill grinding device described in claims 1, it is characterized in that described guiding cone (6) connects motor (12) by transmission device.
CN201310475509.7A 2013-10-12 2013-10-12 Vertical mill Pending CN103537338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310475509.7A CN103537338A (en) 2013-10-12 2013-10-12 Vertical mill

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Application Number Priority Date Filing Date Title
CN201310475509.7A CN103537338A (en) 2013-10-12 2013-10-12 Vertical mill

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CN103537338A true CN103537338A (en) 2014-01-29

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104549780A (en) * 2015-01-14 2015-04-29 绵阳蓝奥重型机械制造有限公司 Novel dual-transmission combined efficient sorting machine
CN104923483A (en) * 2015-05-19 2015-09-23 绵阳蓝奥科技有限公司 Multi-stage efficient powder selecting machine
CN105750021A (en) * 2016-03-03 2016-07-13 天津市帝标建材有限公司 Vertical mill machine for cement production
CN107096609A (en) * 2016-02-22 2017-08-29 桂林桂强机械有限公司 It is a kind of directly to enter feeding type flour mill
CN114643106A (en) * 2022-04-02 2022-06-21 天津水泥工业设计研究院有限公司 Manufacturing method of built-in flow guide mechanism of vertical roller mill

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0751629A (en) * 1993-08-19 1995-02-28 Mitsubishi Heavy Ind Ltd Classifier for vertical roller mill
DE19651103A1 (en) * 1996-12-09 1998-06-10 Krupp Polysius Ag Roll milling process for pulverising relatively hard brittle material e.g. clinker cement
CN102698853A (en) * 2012-06-25 2012-10-03 张少明 New vertical mill grinding device
CN203725199U (en) * 2013-10-12 2014-07-23 张少明 Grinding device of vertical mill

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0751629A (en) * 1993-08-19 1995-02-28 Mitsubishi Heavy Ind Ltd Classifier for vertical roller mill
DE19651103A1 (en) * 1996-12-09 1998-06-10 Krupp Polysius Ag Roll milling process for pulverising relatively hard brittle material e.g. clinker cement
CN102698853A (en) * 2012-06-25 2012-10-03 张少明 New vertical mill grinding device
CN203725199U (en) * 2013-10-12 2014-07-23 张少明 Grinding device of vertical mill

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104549780A (en) * 2015-01-14 2015-04-29 绵阳蓝奥重型机械制造有限公司 Novel dual-transmission combined efficient sorting machine
CN104923483A (en) * 2015-05-19 2015-09-23 绵阳蓝奥科技有限公司 Multi-stage efficient powder selecting machine
CN107096609A (en) * 2016-02-22 2017-08-29 桂林桂强机械有限公司 It is a kind of directly to enter feeding type flour mill
CN105750021A (en) * 2016-03-03 2016-07-13 天津市帝标建材有限公司 Vertical mill machine for cement production
CN114643106A (en) * 2022-04-02 2022-06-21 天津水泥工业设计研究院有限公司 Manufacturing method of built-in flow guide mechanism of vertical roller mill

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Application publication date: 20140129