CN106890705A - A kind of medium-speed pulverizer - Google Patents

A kind of medium-speed pulverizer Download PDF

Info

Publication number
CN106890705A
CN106890705A CN201710253788.0A CN201710253788A CN106890705A CN 106890705 A CN106890705 A CN 106890705A CN 201710253788 A CN201710253788 A CN 201710253788A CN 106890705 A CN106890705 A CN 106890705A
Authority
CN
China
Prior art keywords
mill
roller
grinding
roll sleeve
milling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710253788.0A
Other languages
Chinese (zh)
Other versions
CN106890705B (en
Inventor
戴永君
袁鸿飞
张喜春
孟凡荣
赵家辉
孙英臣
戚世岩
徐春梅
王立芳
孙权
王赟翔
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGCHUN POWER GENERATION EQUIPMENT PLANT
Original Assignee
CHANGCHUN POWER GENERATION EQUIPMENT PLANT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CHANGCHUN POWER GENERATION EQUIPMENT PLANT filed Critical CHANGCHUN POWER GENERATION EQUIPMENT PLANT
Priority to CN201710253788.0A priority Critical patent/CN106890705B/en
Publication of CN106890705A publication Critical patent/CN106890705A/en
Application granted granted Critical
Publication of CN106890705B publication Critical patent/CN106890705B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/004Shape or construction of rollers or balls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C15/00Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
    • B02C15/007Mills with rollers pressed against a rotary horizontal disc
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group

Abstract

A kind of medium-speed pulverizer, including the assembling of motor, reductor, lower frame, middle support body, separator, mill, grinding roller assembling, pressue device, drag link mechanism, hydraulic system, slag-draining device, lubricating system, basis, improvements introduced is:The shape of part grinding roller roller of milling set is centripetal circular arc bowl-type(Molded line of milling still is circular arc), the radius of curvature for grinding roll sleeve central diameter takes 0.5 times of grinding machine pitch diameter to infinitely great multiple, and the positive effect of the present invention is:By changing the shape that its original roller covers, roller set section is changed to centripetal circular arc kidney-shaped, increases roller set and the region of milling of millstone sheet by wheel the form of the foetus, the crushing efficiency of raw coal is improve in the unit interval, so as to improve exerting oneself for coal pulverizer;The grinding roller of arc-shaped is rotated along with the mill rail central diameter of mill on millstone sheet, reduces the linear velocity difference of mill roll sleeve and millstone sheet, reduces the abrasion that roller covers outside left.

Description

A kind of medium-speed pulverizer
Technical field
The invention belongs to powder disintegrating apparatus technical field processed, and in particular to coal-fired station's coal-grinding equipment.
Background technology
The more medium-speed pulverizer for using of the coal-burning utilities such as thermal power plant, including main motor, reductor, lower frame, middle frame Body, separator, mill assembling, grinding roller assembling, pressue device, drag link mechanism, hydraulic system, slag-draining device, lubricating system, basis Deng part.When equipment is run, main motor drives the mill being fixed on above reductor to rotate by shaft coupling, and millstone sheet is fixed On mill, in the presence of frictional force, mill drives grinding roller rotation.Fallen the raw coal on millstone sheet by separator coal spout Milled by grinding roller, be ground to the qualified coal dust of certain fineness and be sent outside mill by separator flour extraction pipe by a hot blast. Mill part grinding roller and mill plays a part of milling and crushing to raw coal, fineness of pulverized coal is reached qualified requirement.
In wheel the form of the foetus, three grinding rollers are evenly arranged in mill in roller set section in the grinding roller assembling of the wheeled coal pulverizer of conventional middling speed On disk watt, grinding roller falls in the mill rail central diameter of millstone sheet, raw coal is formed between grinding roller and millstone sheet and is milled region.Coal pulverizer work When making, the raw coal fallen from coal spout is thrown on millstone sheet under the rotation of mill, and grinding roller falls on raw coal, in hydraulic system Raw coal is milled under the grinding forces effect of applying.By milling, modular construction is influenceed, and the raw coal amount in region of milling is relative It is less, have impact on exerting oneself for coal pulverizer;Simultaneously as roller set is outside larger with the linear differential of millstone sheet, grinding roller roller is increased Abrasion outside set, reduces the service life of part of milling.
The content of the invention
It is an object of the invention to provide a kind of medium-speed pulverizer, by changing the shape of mill roll sleeve, existing mill is overcome Coal machine above shortcomings.
The present invention includes:Motor, reductor, lower frame, middle support body, separator, mill assembling, grinding roller assembling, pressurization Device, drag link mechanism, hydraulic system, slag-draining device, lubricating system, basis, the improvement done is:The grinding roller roller milled in assembling The shape of set is tire-like, centripetal circular arc bowl-type(Molded line of milling still is circular arc), grind roll sleeve central diameter(In by grinding roll sleeve Property layer and mill roll sleeve molded line midpoint radius)Radius of curvature span be coal pulverizer pitch diameter(Coal pulverizer grinding section The diameter of circular arc where part grinding roller and millstone sheet contact point)0.5 times to infinitely great multiple, mill molded line and the mill of roller set Watt(It is arc bowl formula structure)Molded line of milling match, grinding roller is rolled on millstone sheet along the mill rail central diameter of mill.
In the present invention, the mill roll sleeve preferred span of central diameter radius of curvature be equal to the 2000 of coal pulverizer pitch diameter to 10000 times.
In the present invention, mill roll sleeve central diameter radius of curvature optimum valuing range is equal to the 3000 of coal pulverizer pitch diameter Times.
The good effect of invention is:New grinding roller assembling uses the roller set of centripetal circular arc kidney-shaped(Roller set mills molded line to justify Arc), the molded line of millstone sheet and mill roll sleeve match, and reduces the linear velocity difference of mill roll sleeve and millstone sheet, reduces Roller covers the abrasion of outside left, improves the service life of easy-abrasion part.When coal pulverizer works, fall in grinding roller and millstone sheet Between mill the area increase of effectively milling in region, make to fall the raw coal quality phase in region of being milled between mill roll sleeve and millstone sheet To increasing, the crushing efficiency of raw coal is improved in the unit interval, so as to improve exerting oneself for coal pulverizer, be more beneficial for the steady of equipment operation It is fixed.
Brief description of the drawings
Fig. 1 is medium-speed pulverizer overall structure figure of the present invention.
Fig. 2 is that grinding roller covers shape and grinding roller assembling assembles installation graph with mill.
Fig. 3 is the radius of curvature and grinding machine pitch diameter graph of a relation for grinding roll sleeve central diameter.
Specific embodiment
Embodiment 1
Refering to Fig. 1, Fig. 2, Fig. 3, medium-speed pulverizer of the present invention include main motor 1, reductor 2, lower frame 3, middle support body 4, point From device 5, mill assembling 6, grinding roller assembling 7, pressue device 8, drag link mechanism 9, basis 10, hydraulic system(It is not drawn into), deslagging dress Put(It is not drawn into), lubricating system(It is not drawn into).Improvements introduced be grinding roller assembling mill roll sleeve 7-1 shapes be tire-like, to Heart circular arc bowl-type(Molded line of milling still is circular arc), the radius of curvature of mill roll sleeve central diameter Rt takes the 3000 of grinding machine pitch diameter Dj Times, the running orbit of grinding roller is consistent with the mill rail central diameter of mill.
Embodiment 2
Refering to Fig. 1, Fig. 2, Fig. 3, medium-speed pulverizer of the present invention include main motor 1, reductor 2, lower frame 3, middle support body 4, point From device 5, mill assembling 6, grinding roller assembling 7, pressue device 8, drag link mechanism 9, basis 10, hydraulic system(It is not drawn into), deslagging dress Put(It is not drawn into), lubricating system(It is not drawn into).Improvements introduced be grinding roller assembling mill roll sleeve 7-1 shapes be tire-like, to Heart circular arc bowl-type(Molded line of milling still is circular arc), the radius of curvature of mill roll sleeve central diameter Rt takes the 2000 of grinding machine pitch diameter Dj Times, the running orbit of grinding roller is consistent with the mill rail central diameter of mill.
Embodiment 3
Refering to Fig. 1, Fig. 2, Fig. 3, medium-speed pulverizer of the present invention include main motor 1, reductor 2, lower frame 3, middle support body 4, point From device 5, mill assembling 6, grinding roller assembling 7, pressue device 8, drag link mechanism 9, basis 10, hydraulic system(It is not drawn into), deslagging dress Put(It is not drawn into), lubricating system(It is not drawn into).Improvements introduced be grinding roller assembling mill roll sleeve 7-1 shapes be tire-like, to Heart circular arc bowl-type(Molded line of milling still is circular arc), the radius of curvature of mill roll sleeve central diameter Rt takes the 5000 of grinding machine pitch diameter Dj Times, the running orbit of grinding roller is consistent with the mill rail central diameter of mill.
Embodiment 4
Refering to Fig. 1, Fig. 2, Fig. 3, medium-speed pulverizer of the present invention include main motor 1, reductor 2, lower frame 3, middle support body 4, point From device 5, mill assembling 6, grinding roller assembling 7, pressue device 8, drag link mechanism 9, basis 10, hydraulic system(It is not drawn into), deslagging dress Put(It is not drawn into), lubricating system(It is not drawn into).Improvements introduced be grinding roller assembling mill roll sleeve 7-1 shapes be tire-like, to Heart circular arc bowl-type(Molded line of milling still is circular arc), the radius of curvature of mill roll sleeve central diameter Rt takes the 7000 of grinding machine pitch diameter Dj Times, the running orbit of grinding roller is consistent with the mill rail central diameter of mill.
Embodiment 5
Refering to Fig. 1, Fig. 2, Fig. 3, medium-speed pulverizer of the present invention include main motor 1, reductor 2, lower frame 3, middle support body 4, point From device 5, mill assembling 6, grinding roller assembling 7, pressue device 8, drag link mechanism 9, basis 10, hydraulic system(It is not drawn into), deslagging dress Put(It is not drawn into), lubricating system(It is not drawn into).Improvements introduced be grinding roller assembling mill roll sleeve 7-1 shapes be tire-like, to Heart circular arc bowl-type(Molded line of milling still is circular arc), the radius of curvature of mill roll sleeve central diameter Rt takes grinding machine pitch diameter Dj's 10000 times, the running orbit of grinding roller is consistent with the mill rail central diameter of mill.

Claims (3)

1. a kind of medium-speed pulverizer, including motor, reductor, lower frame, middle support body, separator, grinding roller assembling, mill dress With, pressue device, drag link mechanism, hydraulic system, slag-draining device, lubricating system, basis, it is characterized in that:Mill in grinding roller assembling The shape of roll sleeve is tire-like, centripetal circular arc bowl-type, and mill roll sleeve central diameter radius of curvature span is equal to coal pulverizer section 0.5 times of circular diameter to infinitely great multiple, the molded line of milling of roller set matches with the molded line of milling of millstone sheet.
2. a kind of medium-speed pulverizer according to claim 1, it is characterized in that:Mill roll sleeve central diameter radius of curvature span It is equal to 2000 to 10000 times of coal pulverizer pitch diameter.
3. a kind of medium-speed pulverizer according to claim 1, it is characterized in that:Mill roll sleeve central diameter radius of curvature span It is equal to 3000 times of coal pulverizer pitch diameter.
CN201710253788.0A 2017-04-18 2017-04-18 A kind of medium-speed pulverizer Active CN106890705B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710253788.0A CN106890705B (en) 2017-04-18 2017-04-18 A kind of medium-speed pulverizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710253788.0A CN106890705B (en) 2017-04-18 2017-04-18 A kind of medium-speed pulverizer

Publications (2)

Publication Number Publication Date
CN106890705A true CN106890705A (en) 2017-06-27
CN106890705B CN106890705B (en) 2019-09-17

Family

ID=59196447

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710253788.0A Active CN106890705B (en) 2017-04-18 2017-04-18 A kind of medium-speed pulverizer

Country Status (1)

Country Link
CN (1) CN106890705B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109012886A (en) * 2018-07-02 2018-12-18 天津水泥工业设计研究院有限公司 A kind of grinding roller of vertical mill mill speed difference on-line monitoring system

Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000288416A (en) * 1999-04-02 2000-10-17 Babcock Hitachi Kk Vertical roller mill
US20040227024A1 (en) * 2003-05-13 2004-11-18 Bharat Heavy Electricals Ltd. Bowl mill for a coal pulverizer with an air mill for primary entry of air
JP2006110521A (en) * 2004-10-18 2006-04-27 Babcock Hitachi Kk Mill apparatus
CN100998959A (en) * 2006-12-28 2007-07-18 长春发电设备有限责任公司 Middle speed coal grinding machine
CN101125306A (en) * 2007-10-09 2008-02-20 辽宁重机设备技术有限公司 Roller type medium speed mill
CN202638496U (en) * 2012-06-11 2013-01-02 安徽安重水电设备有限公司 Roller disc type medium speed coal milling machine
CN102941141A (en) * 2012-11-28 2013-02-27 北京电力设备总厂 Roller ring mill
CN202942931U (en) * 2012-11-06 2013-05-22 北京电力设备总厂 Coal mill and grinding mechanism thereof
CN203002426U (en) * 2012-12-27 2013-06-19 陕西渤兴电力科技有限公司 Anti-cracking wear-resistant component for coal mill
CN203540629U (en) * 2013-11-12 2014-04-16 北京新源宝通电力设备有限公司 Gradually-changed rolling type HP (High Power) coal mill
CN103769274A (en) * 2014-02-20 2014-05-07 北京电力设备总厂 Coal mill
CN203725201U (en) * 2014-02-19 2014-07-23 北京电力设备总厂 Medium-speed vertical mill applied to petroleum coke grinding
CN103949308A (en) * 2014-04-29 2014-07-30 陕西志远粉体工程设备有限公司 Improved H-shaped grinder
CN204234142U (en) * 2014-09-05 2015-04-01 上海沃山重工机器制造有限公司 A kind of high-efficiency differential flour mill
CN204247299U (en) * 2014-05-20 2015-04-08 长春发电设备总厂 The wheeled Roller of Coal Grinder roller shell of a kind of middling speed
CN205435873U (en) * 2016-02-16 2016-08-10 长春发电设备总厂 Medium speed pulverizer's mill tile
CN205761458U (en) * 2016-06-07 2016-12-07 广东石油化工学院 A kind of coal pulverizer properly mixing burning Indonesia coal
CN206853810U (en) * 2017-04-18 2018-01-09 长春发电设备总厂 A kind of medium-speed pulverizer

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000288416A (en) * 1999-04-02 2000-10-17 Babcock Hitachi Kk Vertical roller mill
US20040227024A1 (en) * 2003-05-13 2004-11-18 Bharat Heavy Electricals Ltd. Bowl mill for a coal pulverizer with an air mill for primary entry of air
JP2006110521A (en) * 2004-10-18 2006-04-27 Babcock Hitachi Kk Mill apparatus
CN100998959A (en) * 2006-12-28 2007-07-18 长春发电设备有限责任公司 Middle speed coal grinding machine
CN101125306A (en) * 2007-10-09 2008-02-20 辽宁重机设备技术有限公司 Roller type medium speed mill
CN202638496U (en) * 2012-06-11 2013-01-02 安徽安重水电设备有限公司 Roller disc type medium speed coal milling machine
CN202942931U (en) * 2012-11-06 2013-05-22 北京电力设备总厂 Coal mill and grinding mechanism thereof
CN102941141A (en) * 2012-11-28 2013-02-27 北京电力设备总厂 Roller ring mill
CN203002426U (en) * 2012-12-27 2013-06-19 陕西渤兴电力科技有限公司 Anti-cracking wear-resistant component for coal mill
CN203540629U (en) * 2013-11-12 2014-04-16 北京新源宝通电力设备有限公司 Gradually-changed rolling type HP (High Power) coal mill
CN203725201U (en) * 2014-02-19 2014-07-23 北京电力设备总厂 Medium-speed vertical mill applied to petroleum coke grinding
CN103769274A (en) * 2014-02-20 2014-05-07 北京电力设备总厂 Coal mill
CN103949308A (en) * 2014-04-29 2014-07-30 陕西志远粉体工程设备有限公司 Improved H-shaped grinder
CN204247299U (en) * 2014-05-20 2015-04-08 长春发电设备总厂 The wheeled Roller of Coal Grinder roller shell of a kind of middling speed
CN204234142U (en) * 2014-09-05 2015-04-01 上海沃山重工机器制造有限公司 A kind of high-efficiency differential flour mill
CN205435873U (en) * 2016-02-16 2016-08-10 长春发电设备总厂 Medium speed pulverizer's mill tile
CN205761458U (en) * 2016-06-07 2016-12-07 广东石油化工学院 A kind of coal pulverizer properly mixing burning Indonesia coal
CN206853810U (en) * 2017-04-18 2018-01-09 长春发电设备总厂 A kind of medium-speed pulverizer

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
于红旭: "中速磨煤机的运行特性计算机仿真研究", 《硕博论文》 *
宋增旺;成凯: "MPS与ZGM型中速磨煤机比较", 《中国新技术新产品》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109012886A (en) * 2018-07-02 2018-12-18 天津水泥工业设计研究院有限公司 A kind of grinding roller of vertical mill mill speed difference on-line monitoring system
CN109012886B (en) * 2018-07-02 2020-12-15 天津水泥工业设计研究院有限公司 Vertical mill grinding roller and grinding disc speed difference on-line monitoring system

Also Published As

Publication number Publication date
CN106890705B (en) 2019-09-17

Similar Documents

Publication Publication Date Title
CN102784692B (en) Flexible vertical grinder
CN103263955B (en) Production equipment for extracting cotton protein from cottonseed meal
CN103521333B (en) A kind of to pulverize and two-stage sorting process and pulverizing and two-stage separation system
CN205340923U (en) Two output mode grind immediately
CN102601891B (en) Crusher
CN101125306A (en) Roller type medium speed mill
CN201543468U (en) Circulating enclosed vertical pulverizing device
CN102822355A (en) Preparation method for stainless steel slags and steelworks slags for recovery of metal
CN204583352U (en) The deironing apparatus of vertical roller grinder system
CN202021065U (en) Flour mill
CN202942931U (en) Coal mill and grinding mechanism thereof
CN101862699B (en) Semi-finished pre-grinding vertical-milling and ball-milling combined grinding device
CN102430453B (en) Polygonal adjustable air ring for roll mill
CN103567019B (en) A kind of gradual change compaction type HP type coal pulverizer
CN101380606A (en) Bowl type half-speed grinding mill
CN203695194U (en) Efficient slag powder selecting machine
CN101269348A (en) Novel technique for producing limestone powder
CN103706431A (en) High-pressure roller extruding mill
CN201040256Y (en) Vertical type mill roller powder mill
CN102000622B (en) Grinding table for slag vertical mill
CN201871398U (en) Wheel mill
CN103108699B (en) Vertical rolls
CN203291915U (en) Ultrafine powder differential swing arm roller grinding machine
CN204865994U (en) Hierarchical grinding structure that vertical roller ground
CN103495482A (en) Smashing and sorting technology as well as smashing and sorting system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: No. 3388 century street, Changchun Economic Development Zone, Jilin Province, Jilin

Applicant after: China Electric Construction Group Changchun power generation equipment Co., Ltd.

Address before: Two district Huairenlu 130000 Jilin province Changchun No. 621

Applicant before: Changchun Power Generation Equipment Plant

CB02 Change of applicant information
CB03 Change of inventor or designer information

Inventor after: Yuan Hongfei

Inventor after: Sun Yingchen

Inventor after: Qi Shiyan

Inventor after: Wang Lifang

Inventor after: Sun Quan

Inventor after: Xu Chunmei

Inventor after: Wang Binxiang

Inventor after: An Peng

Inventor after: Yang Zhe

Inventor after: Zhang Xichun

Inventor after: Zhang Mingchang

Inventor after: Dai Yongjun

Inventor after: Chi Zhengang

Inventor after: Meng Fanrong

Inventor after: Rong Jingtao

Inventor after: Yang Liu

Inventor after: Zhao Jiahui

Inventor before: Dai Yongjun

Inventor before: Sun Quan

Inventor before: Wang Binxiang

Inventor before: Yuan Hongfei

Inventor before: Zhang Xichun

Inventor before: Meng Fanrong

Inventor before: Zhao Jiahui

Inventor before: Sun Yingchen

Inventor before: Qi Shiyan

Inventor before: Xu Chunmei

Inventor before: Wang Lifang

CB03 Change of inventor or designer information
GR01 Patent grant
GR01 Patent grant