CN102716855A - Direct driving powder concentrator of vertical mill low-speed great-torque permanent-magnet electric motor and powder concentrating method - Google Patents
Direct driving powder concentrator of vertical mill low-speed great-torque permanent-magnet electric motor and powder concentrating method Download PDFInfo
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- CN102716855A CN102716855A CN2012102192473A CN201210219247A CN102716855A CN 102716855 A CN102716855 A CN 102716855A CN 2012102192473 A CN2012102192473 A CN 2012102192473A CN 201210219247 A CN201210219247 A CN 201210219247A CN 102716855 A CN102716855 A CN 102716855A
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- 239000000843 powder Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000001360 synchronised effect Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 230000002950 deficient Effects 0.000 claims description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 5
- 230000001174 ascending effect Effects 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000003638 chemical reducing agent Substances 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 230000009467 reduction Effects 0.000 description 5
- 239000004568 cement Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000005571 horizontal transmission Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000005570 vertical transmission Effects 0.000 description 1
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Abstract
The invention relates to a direct driving powder concentrator of a vertical mill low-speed great-torque permanent-magnet electric motor and a powder concentrating method. In a transmission system of the power concentrator, a vertical permanent-magnet synchronous motor direct driving mode is adopted for replacing the traditional asynchronous motor and gear speed reducer system, and the integral integration design of the motor and mechanical equipment is realized. A driving electric motor adopts the frequency conversion and speed modulation technology, and in addition, soft starting is realized by using a frequency converter, so the motor can realize the stable starting under the full load condition. The driving electric motor is directly and vertically arranged on a base, a main shaft of a rotating cage and a rotating shaft of the electric motor are directly connected through a shaft coupler, the rotating cage is arranged in the center of a machine case, and the outer side of the rotating cage is provided with a wind guide blade. The powder concentrator and the powder concentrating method provided by the invention have the advantages that the structure of the traditional powder concentrator can be simplified, the system efficiency is improved, and the asynchronous motor and gear speed reducer structure in the existing powder concentrator can be widely replaced.
Description
Technical field
The invention belongs to a kind of powder concentrator equipment of vertical grinder, particularly a kind of vertical grinder low speed large torque moment permanent-magnet motor direct driving formula powder concentrator and select the powder method.
Background technology
At present in cement and blast-furnace cinder micro-powder production; The introduction of Vertical Mill equipment is popularized with application fast; Matching used with it new and effective cage modle powder concentrator has obtained developing rapidly, and its performance quality directly influences running status, product quality and the energy-conservation level of system.Vertical Mill is as powerful device, and the power consumption in service of working is very surprising, and the power consumption efficiency that improves Vertical Mill is a difficult problem always.Vertical Mill requires stream time long, and is very high to the stability requirement of equipment.The wind blade of Vertical Mill powder concentrator adds gear reduction unit by asynchronous motor usually and drives.The decelerator volume is big, and need add the horizontal transmission of one-level angle transmission change again and be vertical transmission.The existence of decelerator, drive link, shaft coupling, and the existence of driving-chain protective cover have not only increased equipment cost; Also cause the mechanism of system impetuous; The driving-chain of whole system is long, directly causes transmission efficiency greatly to reduce, and has problems such as difficult in maintenance, wearing and tearing.The asynchronous motor noise of high-speed cruising is big.There is mechanical wear inevitably in gear drive, and along with the increase of running time, wearing and tearing make between the moving component gap become big, cause noise aggravation, transmission efficiency to descend.In recent years; The permasyn morot technology reaches its maturity; With progressively replacing the structure that traditional asynchronous motor adds gear reduction unit, can satisfy the requirement of special machine equipment low-speed high-torque direct driving, avoided asynchronous motor to add the defective that the gear reduction unit system effectiveness is low, power factor is low.
Summary of the invention
Goal of the invention:
The present invention proposes a kind of vertical grinder low speed large torque moment permanent-magnet motor direct driving formula powder concentrator and selects the powder method; Adopt vertical low speed large torque moment permanent-magnet synchronous motor directly to drive rotating cage; Can simplify the system mechanics structure significantly; Improve transmission efficiency, can solve the problem that above-mentioned traditional vertical ore grinding machine exists with powder concentrator equipment effectively.
Technical scheme:
A kind of vertical grinder low speed large torque moment permanent-magnet motor direct driving formula powder concentrator; Comprise casing, it is characterized in that: rotating cage is installed in casing central authorities, and wind blade is equipped with in the rotating cage outside; Rotating cage central authorities are provided with the rotating cage main shaft; The rotating cage main shaft is connected with the motor rotary shaft of its top drive motor, and drive motor is vertical being installed on the pedestal directly, above casing, also is provided with air outlet.
The rotating cage main shaft directly is connected through shaft coupling with motor rotary shaft.
A kind of aforesaid vertical grinder low speed large torque moment permanent-magnet motor direct driving formula powder concentrator select the powder method; It is characterized in that: adopt vertical low speed large torque moment permanent-magnet synchronous motor directly to drive the rotating cage of above-mentioned powder concentrator; Rotating cage rotates the generation ascending air levigate material web is gone into powder concentrator; After twice sorting, defective material falls back to mill, and qualified material is discharged from air outlet.
Electric Machine Control adopts frequency control.
Motor speed is at 50-150r/min, and rated frequency is lower than 50Hz.
The stator coil of drive motor adopts the fractional-slot winding flume structure.
Advantage and effect:
The present invention proposes a kind of vertical grinder low speed large torque moment permanent-magnet motor direct driving formula powder concentrator and select the powder method, have following advantage:
Adopt vertical low-speed permanent-magnet synchronous motor directly to drive rotating cage, rotating cage rotates the generation ascending air levigate material web is gone into powder concentrator, after twice sorting; Defective material falls back to mill; Qualified material is discharged from air outlet, realizes motor and the integrated design of mechanized equipment, makes the designs simplification of powder concentrator; Efficient significantly improves, and can substitute widely that asynchronous motor adds the gear reduction unit structure in the existing powder concentrator.
Description of drawings:
Fig. 1 is the structural representation of vertical grinder low speed large torque moment permanent-magnet motor direct driving formula powder concentrator of the present invention;
Fig. 2 is that the drive motor rotating shaft is connected sketch map with the rotating cage main shaft.
Description of reference numerals:
1. casing, 2. wind blade, 3. air outlet, 4. drive motor, 5. motor rotary shaft, 6. pedestal, 7. rotating cage main shaft, 8. rotating cage, 9. shaft coupling.
The specific embodiment:
Below in conjunction with accompanying drawing the present invention is done further explanation:
Shown in Fig. 1 and Fig. 2, the present invention proposes a kind of vertical grinder low speed large torque moment permanent-magnet motor direct driving formula powder concentrator, in the transmission system of powder concentrator; Replace traditional asynchronous machine with the mode of vertical permasyn motor direct driving and add the gear reduction unit system, realize motor and the integrated design of mechanized equipment, comprise casing 1; It is characterized in that: rotating cage 8 is installed in casing 1 central authorities; Wind blade 2 is equipped with in rotating cage 8 outsides, and rotating cage 8 central authorities are provided with rotating cage main shaft 7, and rotating cage main shaft 7 is connected with the motor rotary shaft 5 of its top drive motor 4; Drive motor 4 direct vertical being installed on the pedestal 6 also are provided with air outlet 3 above casing 1.
Rotating cage main shaft 7 directly is connected through shaft coupling 9 with motor rotary shaft 5.
A kind of aforesaid vertical grinder low speed large torque moment permanent-magnet motor direct driving formula powder concentrator select the powder method; It is characterized in that: drive motor 4 is made the vertical structure of directly driving; Adopt vertical low speed large torque moment permanent-magnet synchronous motor directly to drive the rotating cage 8 of above-mentioned powder concentrator, rotating cage 8 rotates the generation ascending air levigate material web is gone into powder concentrator, after twice sorting; Defective material falls back to mill, and qualified material is discharged from air outlet 3.
The stator coil of drive motor 4 can adopt the fractional-slot winding flume structure, reduces the motor electromagnetic harmonic wave, reduces motor oscillating and noise.Motor speed is usually at 50-150r/min; For example can be provided with according to actual needs for 50r/min, 70r/min, 100r/min, 120r/min, 150r/min etc.; Rated frequency is lower than 50Hz; Motor control strategy adopts variable-frequency control technique, and utilizes frequency converter to realize fully loaded soft start, makes this permasyn morot can smooth starting under fully loaded situation.
Claims (6)
1. vertical grinder low speed large torque moment permanent-magnet motor direct driving formula powder concentrator; Comprise casing (1); It is characterized in that: rotating cage (8) is installed in casing (1) central authorities; Wind blade (2) is equipped with in rotating cage (8) outside, and rotating cage (8) central authorities are provided with rotating cage main shaft (7), and rotating cage main shaft (7) is connected with the motor rotary shaft (5) of its top drive motor (4); Drive motor (4) is vertical being installed on the pedestal (6) directly, also is provided with air outlet (3) in casing (1) top.
2. vertical grinder low speed large torque moment permanent-magnet motor direct driving formula powder concentrator according to claim 1, it is characterized in that: rotating cage main shaft (7) directly is connected through shaft coupling (9) with motor rotary shaft (5).
3. a vertical grinder low speed large torque moment permanent-magnet motor direct driving formula powder concentrator as claimed in claim 1 selects the powder method; It is characterized in that: adopt vertical low speed large torque moment permanent-magnet synchronous motor directly to drive the rotating cage (8) of above-mentioned powder concentrator; Rotating cage (8) rotates the generation ascending air levigate material web is gone into powder concentrator; After twice sorting, defective material falls back to mill, and qualified material is discharged from air outlet (3).
4. vertical grinder low speed large torque moment permanent-magnet motor direct driving formula powder concentrator according to claim 3 selects the powder method, it is characterized in that: Electric Machine Control adopts frequency control.
5. select the powder method according to claim 3 or 4 described vertical grinder low speed large torque moment permanent-magnet motor direct driving formula powder concentrators, it is characterized in that: motor speed is at 50-150r/min, and rated frequency is lower than 50Hz.
6. select the powder method according to claim 1 or 3 described vertical grinder low speed large torque moment permanent-magnet motor direct driving formula powder concentrators, it is characterized in that: the stator coil of drive motor (4) adopts the fractional-slot winding flume structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219247.3A CN102716855B (en) | 2012-06-29 | 2012-06-29 | Direct driving powder concentrator of vertical mill low-speed great-torque permanent-magnet electric motor and powder concentrating method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210219247.3A CN102716855B (en) | 2012-06-29 | 2012-06-29 | Direct driving powder concentrator of vertical mill low-speed great-torque permanent-magnet electric motor and powder concentrating method |
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| CN102716855A true CN102716855A (en) | 2012-10-10 |
| CN102716855B CN102716855B (en) | 2015-01-28 |
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| CN201210219247.3A Active CN102716855B (en) | 2012-06-29 | 2012-06-29 | Direct driving powder concentrator of vertical mill low-speed great-torque permanent-magnet electric motor and powder concentrating method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001669A (en) * | 2014-06-10 | 2014-08-27 | 上海建冶路桥机器设备有限公司 | Analyzer device for micro powder mill |
| CN104971796A (en) * | 2015-06-13 | 2015-10-14 | 中煤张家口煤矿机械有限责任公司 | Hammer crusher directly driven through permanent magnet synchronous variable-frequency motor |
| CN106999946A (en) * | 2014-12-16 | 2017-08-01 | 三菱日立电力系统株式会社 | Rotary grader and vertical crusher |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0212562D0 (en) * | 2001-06-01 | 2002-07-10 | Samsung Kwangju Electronics Co | Grille assembly for cyclone dust collecting apparatus of a vacuum cleaner |
| CN2825110Y (en) * | 2005-11-08 | 2006-10-11 | 朱长洪 | Three-separation powder concentrator |
| CN200984561Y (en) * | 2006-09-30 | 2007-12-05 | 江苏科行环境工程技术有限公司 | Superfine powder seperator special for industrial residue |
| CN101786082A (en) * | 2010-03-25 | 2010-07-28 | 天津水泥工业设计研究院有限公司 | Up feeding and down feeding double-grading type high-efficient powder concentrator |
-
2012
- 2012-06-29 CN CN201210219247.3A patent/CN102716855B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0212562D0 (en) * | 2001-06-01 | 2002-07-10 | Samsung Kwangju Electronics Co | Grille assembly for cyclone dust collecting apparatus of a vacuum cleaner |
| CN2825110Y (en) * | 2005-11-08 | 2006-10-11 | 朱长洪 | Three-separation powder concentrator |
| CN200984561Y (en) * | 2006-09-30 | 2007-12-05 | 江苏科行环境工程技术有限公司 | Superfine powder seperator special for industrial residue |
| CN101786082A (en) * | 2010-03-25 | 2010-07-28 | 天津水泥工业设计研究院有限公司 | Up feeding and down feeding double-grading type high-efficient powder concentrator |
Non-Patent Citations (1)
| Title |
|---|
| 张炳义等: "SPWM电源供电下低速大扭矩永磁同步电动机设计研究", 《电工技术学报》, vol. 16, no. 6, 31 December 2001 (2001-12-31), pages 85 - 90 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001669A (en) * | 2014-06-10 | 2014-08-27 | 上海建冶路桥机器设备有限公司 | Analyzer device for micro powder mill |
| CN104001669B (en) * | 2014-06-10 | 2015-10-28 | 上海建冶路桥机器设备有限公司 | A kind of micro mist flour mill analytical engine device |
| CN106999946A (en) * | 2014-12-16 | 2017-08-01 | 三菱日立电力系统株式会社 | Rotary grader and vertical crusher |
| CN104971796A (en) * | 2015-06-13 | 2015-10-14 | 中煤张家口煤矿机械有限责任公司 | Hammer crusher directly driven through permanent magnet synchronous variable-frequency motor |
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| Publication number | Publication date |
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| CN102716855B (en) | 2015-01-28 |
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Effective date of registration: 20180517 Address after: 116000 leading Village Street salt factory, Lushunkou District, Dalian, Liaoning Patentee after: DALIAN GUANLI MOTOR TECHNOLOGY Co.,Ltd. Address before: 110023 287-1 Xingshun Street, Tiexi District, Shenyang, Liaoning 231 Patentee before: Feng Guihong |
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Denomination of invention: Low speed and high torque permanent magnet motor direct drive powder concentrator for vertical mill and its powder separation method Effective date of registration: 20210322 Granted publication date: 20150128 Pledgee: China Construction Bank Co.,Ltd. Dalian Shahekou sub branch Pledgor: DALIAN GUANLI MOTOR TECHNOLOGY Co.,Ltd. Registration number: Y2021210000012 |
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Date of cancellation: 20230518 Granted publication date: 20150128 Pledgee: China Construction Bank Co.,Ltd. Dalian Shahekou sub branch Pledgor: DALIAN GUANLI MOTOR TECHNOLOGY Co.,Ltd. Registration number: Y2021210000012 |
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Effective date of registration: 20230831 Address after: 110023 287-1 Xingshun Street, Tiexi District, Shenyang, Liaoning 231 Patentee after: Feng Guihong Address before: 116000 leading Village Street salt factory, Lushunkou District, Dalian, Liaoning Patentee before: DALIAN GUANLI MOTOR TECHNOLOGY Co.,Ltd. |