CN2488589Y - A new type Ramon grinder for processing microfine powder - Google Patents

A new type Ramon grinder for processing microfine powder Download PDF

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Publication number
CN2488589Y
CN2488589Y CN 01231775 CN01231775U CN2488589Y CN 2488589 Y CN2488589 Y CN 2488589Y CN 01231775 CN01231775 CN 01231775 CN 01231775 U CN01231775 U CN 01231775U CN 2488589 Y CN2488589 Y CN 2488589Y
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CN
China
Prior art keywords
raymond mill
fine
super
grinding roller
bull ring
Prior art date
Application number
CN 01231775
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Chinese (zh)
Inventor
盖国胜
Original Assignee
北京圆海正粉体技术有限公司
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Priority to CN 01231775 priority Critical patent/CN2488589Y/en
Application granted granted Critical
Publication of CN2488589Y publication Critical patent/CN2488589Y/en

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Abstract

The utility model discloses a new Raymond mill for processing fine powder. Aspects of a grinder roll and a grinding ring are relatively bigger and the aspect ratio of the two is between 0.5 to 2 and 0.16 to 0.64. The grading part adopts an ultra-fine grading head that comprises an impeller rotor and a power part, the amount of the rotors is from one or three. The rotation speed is within 50 to 2000r/m; the impeller rotor adopts vertical type or horizontal type. The utility model improves grinding power and the yield of fine powder is increased. The amount of the fine powder which is graded by the ultra-fine grading head and then returns to the rough powder is less. The grain distribution of the product is under strict control, the quality and quantity of the product are improved.

Description

The novel Raymond mill that is used for fine powder processing
The utility model relates to a kind of novel Raymond mill that is used for fine powder processing, especially on the former type Raymond mill basis of haveing been friends in the past, the ratio of height to diameter of bull ring grinding roller is strengthened, clasfficiator is substituted by super-fine classified head, can finish fineness and be higher than the Raymond mill that the above fine powder of 600 orders is produced.
Raymond mill is widely used in the pulverizing in enormous quantities of industrial department raw materials such as mineral, pottery, chemical industry, building materials.Raymond mill originates from Europe the earliest, though live through the use of decades, the not too big variation of its operation principle and structure.Along with the progress and the development of industrial technology, the fineness and the output that improve Raymond mill processing powder product are each Raymond mill user's common aspirations.
The pulverizing part of tradition Raymond mill is made up of 3-6 grinding roller and bull ring, and the ratio of height to diameter of grinding roller and bull ring (h/d and h/D) is about 0.5 and 0.16.Grinding roller is pressed in the surface of bull ring tightly under action of centrifugal force, material is pulverized levigate under pressure between grinding roller and the bull ring and rubbing action.The grinding roller bull ring height of tradition Raymond mill is on the low side, causes effective crushed work zone narrow, and the grainding capacity of grinding machine is restricted, motor working current is much smaller than rated value.To the clasfficiator sorting, meal returns Raymond mill and pulverizes the pulverizing once more that grinding roller is accepted in the zone material after the pulverizing by airflow blow, and fine powder then enters the product gathering system by clasfficiator.The clasfficiator of tradition Raymond mill is to be welded by 60-120 sheet horizontal radiation shape blade, by blade coarse and fine separation is carried out in the strike of particle.The blow speed difference of blade on the different radius of gyration, poor to partition size control ability by particle.Because the existence of above-mentioned defective, generally about the 200-400 order, thickness confusion in the product can not be produced the fine powder product to traditional Raymond mill product fineness in a large number.
The purpose of this utility model is at the existing problem of existing Raymond mill, under the condition that original system disposes and power is constant, increases milling area and grinding roller quality, improves effectiveness of classification and efficient, thereby improve the quality of products and system throughput.
To achieve these goals, the technical solution adopted in the utility model is as follows.
Raymond mill of the present utility model has increased the ratio of height to diameter of bull ring grinding roller, make the milling area of crushed zone increase, it is characterized in that: bull ring ratio of height to diameter (h/D) is brought up to 0.16-0.64 by original 0.16, the ratio of height to diameter of grinding roller (h/d) is brought up to 0.5-2 by original about 0.5, and the grinding roller quality increases 10-50%.
Clasfficiator of the present utility model is substituted by super-fine classified head, it is characterized in that: the super-fine classified head of classification part is made of vane rotor and power section, and the rotor number is one or three, and rotating speed is in 50-2000 rev/min of scope.Vane rotor can be vertical or horizontal installation.
The main points of the technical program are: the ratio of height to diameter that (1) improves the grinding roller bull ring is that it is highly increased, and enlarges the area of pulverizing abrasive areas between grinding roller and the bull ring; (2) correspondingly improve the grinding roller quality, strengthen grinding effect and improve the ability that Raymond mill is produced fine powder; (3) substitute original clasfficiator with super-fine classified head, oarse-grained sneaking in the strict control product improved classification efficiency and product quality.
The utility model has obtained following useful effect owing to adopted technique scheme: the grainding capacity that Raymond mill is pulverized process strengthens, and the ability to work of motor is given full play to, and fine powder output increases.Super-fine classified head makes that the content of fine powder reduces in the meal, and the size distribution of product obtains strict control, and product quality and output all are significantly increased.
Below in conjunction with accompanying drawing and example the utility model is described further:
Fig. 1 is traditional Raymond mill facade structures figure.
Fig. 2 is traditional Raymond mill clasfficiator construction profile.
Fig. 3 is the structure chart of super-fine classified head rotor impeller.
Fig. 4 is the A-A cutaway view of Fig. 3.
Fig. 5 is the structure chart of the super-fine classified head of vertical single rotor.
Fig. 6 is the structure chart of the super-fine classified head of horizontal single rotor.
Fig. 7 is the sectional structure chart of the super-fine classified head of vertical triple-spool.
Fig. 8 is the plan structure figure of the super-fine classified head of vertical triple-spool.
Fig. 9 is the sectional structure chart of the super-fine classified head of horizontal triple-spool.
Figure 10 is the plan structure figure of the super-fine classified head of horizontal triple-spool.
Figure 11 is traditional Raymond mill roller bull ring structure chart.
Figure 12 is a Raymond mill roller operation principle schematic diagram.
Figure 13 is that novel Raymond mill roller bull ring is increased and changed structure chart behind the analyzer.
As shown in Figure 1, traditional Raymond mill is made up of bottom pulverizing part 1 and top classification part 2. Fig. 2 is the side view of traditional Raymond mill clasfficiator, and clasfficiator is by reduction box 3, power transmission shaft 4, belt The blade 7 that wheel 5, buncher 6, level are installed and shell 8 form. The particle that is graded is at gas Stream is carried secretly down by graded blade, and big particle is hit by blade and drops to the crushed zone again by powder Broken, fine powder by blade after to being collected into product. Because the linear velocity on the different radius of gyration of blade Difference causes and sneaks into more coarse granule in the product.
Fig. 3, Fig. 4 are structure chart and the local cutaway views of super-fine classified head rotor impeller. Blade 9 with 10 welding of two end flanges circles form the cylindrical vane rotor 11 that rotates around axis, axle in this rotor 12 connect mutually through belt pulley 13 and motor 14, rotate under driven by motor, and integral installation is at shell 15 On. As shown in Figure 4, originally the horizontal stepped zone of horizontal blade becomes post on the same radius of gyration The face stepped zone, the radius of gyration of stepped zone is basic identical between blade, and its centrifugal field of force keeps all Even. After the rotating speed of clasfficiator is fixing, be only along the Cut size on the classifying turbine degree of ventilation area One. Blade quantity 60-360 only diminishes the slit between blade. Guarantee internal classification flow field, slit Stable and evenly, improve effectiveness of classification. Guarantee the uniformity in flow field between blade. The rotating speed of impeller exists In the time of 500 rev/mins, the maximum particle diameter of product can be controlled at below 20 microns.
Fig. 5 to Figure 10 is respectively the super-fine classified head of vertical or horizontally-mounted single rotor or three rotors Structure chart.
Figure 11 and Figure 12 are respectively traditional Raymond mill roller bull ring structure chart and work principle schematic, figure Middle mill roller 16 tightly is pressed in the surface of bull ring 17, material under the centrifugal action that its revolution forms 18 is levigate by pulverizing under the pressure between mill roller and the bull ring and friction effect. Figure 13 is mill roller bull ring Structure chart after increasing has increased the height of crushed zone greatly from figure.
Embodiment: traditional 4R3216 type Raymond mill, it is 0.5 grinding roller that four high 160 millimeters, ratio of height to diameters are arranged, about 1000 millimeters of bull ring internal diameter, ratio of height to diameter about 0.16.37 kilowatts of main frame power.The ability of producing the calcite in powder body is: 1250 kilograms of 400 order products/about, can not produce 97% the fine product of 600 orders by 20 microns.Change former clasfficiator super-fine classified first watch through the ratio of height to diameter that improves the grinding roller bull ring with single rotor, 97% the output of the fine product of 600 orders by 20 microns is 1200 kilograms/hour, and 97% the output of the fine product of 800 orders by 15 microns is 800 kilograms/hour.

Claims (4)

1, a kind of novel Raymond mill is mainly formed by pulverizing part and classification part, and it is characterized in that: grinding roller and the bull ring ratio of height to diameter of pulverizing part increase; The super-fine classified head of vane rotor formula is partly adopted in classification.
2, novel Raymond mill according to claim 1 is characterized in that: the grinding roller ratio of height to diameter is between 0.5-2, and grinding roller number 3-5, the bull ring ratio of height to diameter is between 0.16-0.64.
3, novel Raymond mill according to claim 1 is characterized in that: the super-fine classified head of classification part is made of vane rotor and power section, and the rotor number is one or three, and rotating speed is in 50-2000 rev/min of scope.
4, novel Raymond mill according to claim 1 is characterized in that: the vane rotor of the super-fine classified head of classification part can be vertical installation or horizontal installation.
CN 01231775 2001-07-20 2001-07-20 A new type Ramon grinder for processing microfine powder CN2488589Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01231775 CN2488589Y (en) 2001-07-20 2001-07-20 A new type Ramon grinder for processing microfine powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 01231775 CN2488589Y (en) 2001-07-20 2001-07-20 A new type Ramon grinder for processing microfine powder

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CN2488589Y true CN2488589Y (en) 2002-05-01

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CN 01231775 CN2488589Y (en) 2001-07-20 2001-07-20 A new type Ramon grinder for processing microfine powder

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103433096A (en) * 2013-08-28 2013-12-11 郑州金烨科技发展有限公司 Abrasive F sand shaping and model changing machine
CN103909005A (en) * 2014-04-03 2014-07-09 王成新 Raymond sand powder multifunctional machine
CN104492533A (en) * 2014-11-27 2015-04-08 太仓圣广仁自动化设备有限公司 Fine powder mill
CN104668045A (en) * 2015-03-24 2015-06-03 潍坊市精华粉体工程设备有限公司 Raymond mill
CN108405076A (en) * 2018-03-06 2018-08-17 攀钢集团攀枝花钢钒有限公司 Vertical mill, carbonization blast furnace slag breaking method and system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103433096A (en) * 2013-08-28 2013-12-11 郑州金烨科技发展有限公司 Abrasive F sand shaping and model changing machine
CN103909005A (en) * 2014-04-03 2014-07-09 王成新 Raymond sand powder multifunctional machine
CN103909005B (en) * 2014-04-03 2016-02-10 王成新 Thunder frosting powder Multi Role Aircraft
CN104492533A (en) * 2014-11-27 2015-04-08 太仓圣广仁自动化设备有限公司 Fine powder mill
CN104668045A (en) * 2015-03-24 2015-06-03 潍坊市精华粉体工程设备有限公司 Raymond mill
CN104668045B (en) * 2015-03-24 2017-12-08 山东达利尔重工股份有限公司 A kind of raymond mill
CN108405076A (en) * 2018-03-06 2018-08-17 攀钢集团攀枝花钢钒有限公司 Vertical mill, carbonization blast furnace slag breaking method and system

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GR01 Patent grant
C14 Grant of patent or utility model
C41 Transfer of patent application or patent right or utility model
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Owner name: BEIJING YUAN HAI ZHENG POWDER TECHNOLOGY CO., LTD

Free format text: FORMER OWNER: NONE

Effective date: 20031017

Owner name: QINGHUA UNIVERSITY

Free format text: FORMER OWNER: BEIJING YUAN HAI ZHENG POWDER TECHNOLOGY CO., LTD.

TR01 Transfer of patent right

Effective date of registration: 20031017

Address after: 100084 Beijing 100084-82 mailbox

Co-patentee after: Yuanhaizheng Powder Technique Co. Ltd. Beijing

Patentee after: Tsinghua University

Address before: 100084 Department of materials, Tsinghua University, Beijing

Patentee before: Yuanhaizheng Powder Technique Co. Ltd. Beijing

CF01 Termination of patent right due to non-payment of annual fee
C19 Lapse of patent right due to non-payment of the annual fee