CN202143852U - Raymond mill - Google Patents

Raymond mill Download PDF

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Publication number
CN202143852U
CN202143852U CN201120178726U CN201120178726U CN202143852U CN 202143852 U CN202143852 U CN 202143852U CN 201120178726 U CN201120178726 U CN 201120178726U CN 201120178726 U CN201120178726 U CN 201120178726U CN 202143852 U CN202143852 U CN 202143852U
Authority
CN
China
Prior art keywords
grinding roller
raymond mill
plum blossom
hanger
blossom frame
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.)
Expired - Fee Related
Application number
CN201120178726U
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Chinese (zh)
Inventor
刘建锋
王忠利
陈帆
黄明江
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BYD Co Ltd
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BYD Co Ltd
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 BYD Co Ltd filed Critical BYD Co Ltd
Priority to CN201120178726U priority Critical patent/CN202143852U/en
Application granted granted Critical
Publication of CN202143852U publication Critical patent/CN202143852U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a Raymond mill which comprises a host machine and a grader, wherein the host machine and the grader are connected with each other hermetically; the grader is positioned above the host machine; the host machine comprises a housing with an inner chamber and a base positioned at the bottom of the housing and used for sealing the base of the housing; a milling ring seat is fixedly connected with the base and comprises a bottom plate and a side wall, the bottom plate is positioned on the base, and the side wall is positioned on the inner surface of the housing; the inner surface of the side wall is fixedly connected with a milling ring; a spindle seat is fixedly connected to the bottom plate, and a spindle is arranged on the spindle seat in a penetrating manner; one end of the spindle is positioned above the spindle seat and fixedly connected with a plum-blossom rack, and the other end of the spindle is positioned below the spindle seat, extends into the base and is fixedly connected with a belt pulley; and a milling roller assembly and a scraper knife are fixedly connected to the plum-blossom rack and positioned above the plum-blossom rack. Higher finished product ratio and productivity are achieved by adopting the Raymond mill provided by the utility model to process materials.

Description

A kind of Raymond mill
Technical field
The utility model belongs to the micro mist manufacture field, is specifically related to a kind of Raymond mill.
Background technology
Along with nonmetallic mineral in recent years at the broad development of superfine powder application, enterprise requires increasingly highly to nonmetal mineral product, particularly for product fineness higher requirement has been arranged.Raymond mill is that the powder manufacture field is used one of the most universal powder equipment.The operation principle of Raymond mill is: grinding roller when vertical axis rotates owing to action of centrifugal force is pressed on the bull ring; The perching knife that rotates with grinding roller spreads the material on the chassis between grinding roller and the bull ring, and material is squeezed between grinding roller and bull ring and the effect of grinding and being pulverized; Grader is equipped with in the top of mill chamber, forms negative pressure up through the high speed rotation of grading wheel, and the fine powder that reaches certain grain size will be from the outlet above the grinding machine by the sucking-off mill chamber.
But all there was crushing phenomenon in Raymond mill commonly used at present, promptly contained a large amount of super finely ground slags in the finished product.For example, Raymond mill common in the prior art is processed silicon carbide micro-powder, and its yield rate only between 62-70%, can be crossed in crushing process and pulverize, and caused great waste by about 35% sic raw material.Simultaneously, the productive rate of Raymond mill is also very low, is example with the micro mist of producing 1200#; The per hour average blanking 100KG of Raymond mill; The 1200# product that obtains is the highest can only to be reached about 70KG, wherein has the superfine powder about 24KG to tell from cyclone collector, and the useless powder of 6KG is in dust cleaning case.Therefore, various Raymond mills of the prior art cause the yield rate of product and productive rate all lower owing to there was crushing phenomenon.
Summary of the invention
The utility model has solved yield rate and all lower technical problem of productive rate that Raymond mill of the prior art exists.
The utility model provides a kind of Raymond mill, comprises the main frame and the grader that are tightly connected, and grader is positioned at the top of main frame;
Said main frame comprises that one has the casing of inner chamber and is positioned at the base that bottom of shell is used to seal said casing; Be fixedly connected with the bull ring seat on the base, the bull ring seat comprises base plate and sidewall, and base plate is positioned on the base, and sidewall is positioned at the inner surface of casing; Inside surface of side wall is fixedly connected with bull ring;
Be fixedly connected spindle drum on the base plate, be equipped with main shaft on the spindle drum; One end of main shaft is positioned at spindle drum top, is fixedly connected with the plum blossom frame, and the other end is positioned at the spindle drum below, extends in the base and is fixedly connected with belt pulley; Be fixedly connected with grinding roller assembly and perching knife on the plum blossom frame, grinding roller assembly and perching knife are positioned at plum blossom frame top.
The Raymond mill that the utility model provides is through the pulverizing to micro mist of grinding roller and bull ring, when pulverizing material and reaching the particle diameter of inhaling on the grader; Can because the grinding roller assembly is installed on plum blossom frame top with perching knife among the present invention, expect in last suction process, can not stopped along with ascending air gets into grader by the plum blossom frame so pulverize; Directly get into grader; Do not pulverized once more so can not drop to again on the base plate, can effectively be reduced crushing phenomenon, improved the yield rate and the productive rate of powder.
Said plum blossom frame is a hierarchic structure, comprises that central boss and week are along dip portion; One end of main shaft is fixedly connected on the central boss of plum blossom frame, and grinding roller assembly and perching knife are uniformly distributed in the week of plum blossom frame along on the dip portion.Therefore, in the Raymond mill course of work, can not produce the buildup phenomenon, thereby, material fully contacted with grinding roller, improve the abrasive dust efficient of Raymond mill along with the rotation material of plum blossom frame more is prone to disperse easier being scooped up by perching knife to carry out fragmentation.
Said grinding roller assembly comprises the grinding roller axle, be positioned at the grinding roller on grinding roller axle top and be positioned at the hanger of grinding roller axle bottom; Grinding roller is corresponding with the position of bull ring, and the grinding roller centre has through hole, and the upper end of grinding roller axle is arranged in the through hole of grinding roller; Hanger is provided with the passage of the bottom that is used to insert the grinding roller axle, is provided with ball bearing in the passage; Hanger was fixedly connected along dip portion with the week of plum blossom frame.Ball bearing is used to support grinding roller, and helps the grinding roller rotation.
The oil filler point that leads to during the grinding roller axle is provided with along axis, the top of oil filler point is provided with the bolt that is used to seal, and the bottom of oil filler point is arranged in the passage of hanger.Can from oil filler point, inject lubricating oil, thereby reach the effect of lubricated taper roll bearing and ball bearing.
Also be provided with taper roll bearing between the passage of grinding roller axle and hanger, said taper roll bearing is used for the grinding roller rotation.The hanger surface is provided with the shutter that is used to seal said grinding roller axle and hanger passage.Be provided with sealing ring between shutter and the taper roll bearing.Through the setting of shutter and sealing ring, can stop effectively that the material powder granule in the Raymond mill gets in the grinding roller axle, accelerate the wearing and tearing of taper roll bearing, ball bearing or cause grinding roller stuck.
In the utility model, said grinding roller can adopt back taper self-tightening type grinding roller.
The grinding roller assembly is identical with the quantity of perching knife, and grinding roller assembly and the perching knife week in the plum blossom frame evenly spaced apart is along on the dip portion.The quantity of grinding roller assembly is 3-6.Perching knife is identical with the quantity of grinding roller assembly, and this moment, the abrasive dust of Raymond mill was most effective.
Also be provided with feeding mouth on the casing, the grader top is provided with discharging opening.Wherein, feeding mouth is used for the input of material, and discharging opening is used for the output of powder behind the particle.
Said Raymond mill also comprises spring; One end of spring is fixedly connected with hanger, and the other end is fixedly connected with the central boss of plum blossom frame.Hanger is provided with spring card slot, is used for being fixedly connected with an end of spring.Setting through spring between hanger and the plum blossom frame can increase the frictional force between grinding roller and the bull ring, further improves the abrasive dust efficient of Raymond mill.
Description of drawings
Fig. 1 is the structural representation of the Raymond mill of the utility model.
Fig. 2 is the vertical view of plum blossom frame among Fig. 1.
Fig. 3 is the structural representation of grinding roller assembly among Fig. 1.
The specific embodiment
The inventor of the utility model finds, why has in the Raymond mill processing micro mist process of the prior art that to pulverize the productive rate and the yield rate that cause all not high, mainly is to set up and place above grinding roller, the bull ring owing to the interior plum blossom of Raymond mill in the prior art; Reaching micro mist air-flow in Raymond mill of inhaling particle diameter on the analytical engine after feasible the pulverizing rises in the grader internal procedure; Because stopping of plum blossom frame destroyed the ascending air in the Raymond mill, produce turbulent flow in the Raymond mill; Cause part rising powder to fall on the chassis again; And can be kicked up, be sprinkling upon between grinding roller and the bull ring by perching knife once more, continue to pulverize, cause powder excessively to be pulverized.
Therefore, the inventor of utility model of the present invention improves existing Raymond mill structure, and the plum blossom frame is installed in the below of grinding roller, bull ring, thereby can effectively avoid the plum blossom frame to stop the pulverizing material of rising, prevents pulverizing.
Particularly, clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model provides a kind of Raymond mill, and is as shown in Figure 1, comprises the main frame 100 and grader 200 that are tightly connected.Grader 200 is positioned at the top of main frame 100, and the powder after being pulverized by main frame 100 can rise in the grader 200 by classification with ascending air.Wherein, grader 200 can be various grader commonly used of the prior art, for example can be turbine classifier.
Said main frame 100 comprises that one has the casing 11 of inner chamber and is positioned at the base 12 that casing 11 bottoms are used to seal said casing 11.Also be provided with feeding mouth 110 on the casing 11, grader 200 tops are provided with discharging opening 210.Wherein, feeding mouth 110 is used for the input of material, and discharging opening 210 is used for the output of powder behind the particle.
Be fixedly connected with bull ring seat 13 on the base 12, bull ring seat 13 comprises base plate 131 and sidewall 132.Wherein, base plate 131 is positioned on the base 12, and sidewall 132 is positioned at the inner surface of casing 11.The inner surface of sidewall 132 is fixedly connected with bull ring 133, thereby bull ring 133 is used for cooperating with grinding roller 171 material is carried out fragmentation.
Be fixedly connected with spindle drum 14 on the base plate 131.The center of spindle drum 14 is the through hole shape, and main shaft 15 is arranged on this central through hole of spindle drum 14.One end of main shaft 15 is positioned at the top of spindle drum 14, is fixedly connected plum blossom frame 16.Be fixedly connected with grinding roller assembly 17 and perching knife 18 on the plum blossom frame 16, grinding roller assembly 17 is positioned at plum blossom frame 16 tops with perching knife 18.The other end of main shaft 15 is positioned at spindle drum 14 belows, extends in the base 12 and is fixedly connected belt pulley 19.
Said plum blossom frame 16 is hierarchic structure, and is as shown in Figure 1, comprises that central boss 160 and week are along dip portion 161.One end of main shaft 15 is fixedly connected on the central boss 160 of plum blossom frame 16, and the week that grinding roller assembly 17 and perching knife 18 are uniformly distributed in the plum blossom frame is along on the dip portion 161.
As shown in Figure 2, have through hole on the central boss 160 of plum blossom frame 16, an end that is used for main shaft 15 wears.Be provided with along dip portion 161 in the week of plum blossom frame 16 and be used for fixing the perching knife fixture 162 that connects perching knife 18, perching knife fixture 162 is provided with screw hole, thereby can perching knife 18 and week be fixedly connected along dip portion 161 through the screw of packing into.Week also is provided with U-shaped spare 163 along dip portion 161, and the U-shaped space of this U-shaped spare 163 is used to insert grinding roller assembly 17, thereby and the screw of can packing into grinding roller assembly 17 is fixedly connected along dip portion 161 with all.
Therefore, in the Raymond mill course of work, can not produce the buildup phenomenon, thereby, material fully contacted with grinding roller, improve the abrasive dust efficient of Raymond mill along with the rotation material of plum blossom frame 16 more is prone to disperse easier being scooped up by perching knife 18 to carry out fragmentation.
Said grinding roller assembly 17 comprises grinding roller axle 170, be positioned at the grinding roller 171 on grinding roller axle 170 tops and be positioned at the hanger 172 of grinding roller axle 170 bottoms, and is as shown in Figure 3.Wherein, grinding roller 171 is corresponding with the position of bull ring 133, thereby can pass through grinding roller 171, the extruding of bull ring 133, grinding, and material is broken.The centre of grinding roller 171 has through hole, and the upper end of grinding roller axle 170 is arranged in this through hole of grinding roller 171.Hanger 172 is provided with the passage of the bottom that is used to insert grinding roller axle 170, is provided with ball bearing 173 in the passage, is used to support grinding roller 171, and helps the rotation of grinding roller 171.Hanger 172 be fixedly connected in the week of plum blossom frame 16 along dip portion 161; When thereby plum blossom frame 16 rotates; Can drive grinding roller assembly 17 rotates; And the grinding roller 171 of grinding roller assembly 17 is depressed on the bull ring 133 of correspondence position, thereby the material between grinding roller 171, the bull ring 133 is carried out fragmentation through rotating centrifugal force.In the utility model, said grinding roller 171 can adopt back taper self-tightening type grinding roller, makes to be fastenedly connected between outer roller skin and the grinding roller axle 170 of grinding roller 171, improves the roller skin of grinding roller 171 and the bonding strength between the grinding roller axle 170
Grinding roller assembly 17 is identical with the quantity of perching knife 18, and grinding roller assembly 17 and perching knife 18 week in plum blossom frame 16 evenly spaced apart is along on the dip portion 161.Accordingly, as shown in Figure 2, perching knife fixture 162 is identical with the quantity of U-shaped spare 163, and perching knife fixture 162 evenly is intervally arranged with all along on the dip portion 161 with U-shaped spare 163.Perching knife 18 is identical with the quantity of grinding roller assembly 17, and this moment, the abrasive dust of Raymond mill was most effective.Under the preferable case, the quantity of grinding roller assembly is 3-6.
In the utility model, being fixedly connected and grinding roller axle 170 and grinding roller 171 be fixedly connected between bull ring seat 13 and casing 11, the base 12 all can realize that screw 300,301,302 shown in Fig. 1, Fig. 3 through trip bolt.
The oil filler point 174 that leads to during grinding roller axle 170 is provided with along axis, the top of oil filler point 174 is provided with the bolt 303 that is used to seal, and the bottom of oil filler point 174 is arranged in the passage of hanger 172.Can from oil filler point 174, inject lubricating oil, thereby reach the effect of lubricated taper roll bearing 175 and ball bearing 173.
Also be provided with taper roll bearing 175 between the passage of grinding roller axle 170 and hanger 172, said taper roll bearing 175 is used to help grinding roller 171 rotations.Hanger 172 surfaces are provided with the shutter 176 that is used to seal said grinding roller axle 170 and logical 172 roads of hanger.Be provided with sealing ring 177 between shutter 176 and the taper roll bearing 175.Through the setting of shutter 176, sealing ring 177, can stop effectively that the material powder granule in the Raymond mill gets in the grinding roller axle 170, accelerate the wearing and tearing of taper roll bearing 175, ball bearing 173 or cause grinding roller 171 stuck.
The operation principle of the Raymond mill that the utility model provides is: rotate through external motor drives belt pulley 19; Thereby driving the main shaft 15 that is fixedly connected rotates; Main shaft 15 drives the plum blossom frame 16 corresponding rotations that are fixedly connected; Plum blossom frame 16 drives simultaneously are fixedly connected on grinding roller assembly 17 and perching knife 18 rotations on the plum blossom frame 16, and this moment, perching knife 18 scooped up material and spread between grinding roller 171 and the bull ring 133, simultaneously owing to the centrifugal action of grinding roller 171 owing to rotation is depressed on the bull ring 133 of correspondence position; Material between the two pushes, grinds, thereby material is broken.Because grader 200 rotates, make grader 200 be negative pressure state in the Raymond mill with respect to main frame 100.After fragmentation for several times, reaching the powder of inhaling particle diameter on the grader 200 can rise in the grader 200 with stream pressure, and carries out classification through the particle diameter of 200 pairs of powders of grader.Rise in grader 200 processes at powder; Can not receive stopping of plum blossom frame 16; Therefore can prevent effectively that powder from falling to quilt pulverizing once more in the main frame again, makes the Raymond mill that adopts the utility model have excellent abrasive dust efficient, assurance yield rate and productive rate when material is carried out fragmentation.
As a kind of preferred implementation of the utility model, said Raymond mill also comprises spring 400.One end of said spring 400 is fixedly connected with hanger 172, and the other end is fixedly connected with the central boss 160 of plum blossom frame 16.Therefore; Grinding roller assembly 17 with plum blossom frame 16 rotation processes in; Setting through spring 400 between hanger 172 and the plum blossom frame 16; Make grinding roller 171 receive the thrust of rotating centrifugal force and spring 400 simultaneously, can effectively increase the frictional force between grinding roller 171 and the bull ring 133, further improve the abrasive dust efficient of Raymond mill.As shown in Figure 3, also be provided with spring card slot 401 on the hanger 172, be used for being fixedly connected with an end of spring 400.
The Raymond mill that the utility model provides reaches 78-90% to micro mist skilled worker's yield rate.Simultaneously, process number of times repeatedly owing to reduced powder, its productive rate also can increase, be example with the silicon carbide micro-powder of producing 1200#, and the productive rate of the Raymond mill that the utility model provides can reach 80-90 kilogram/per hour.In the utility model, yield rate is the productive rate of qualified products, and productive rate is the qualified products that obtain from the grader all outlet ports and the productive rate altogether of substandard product.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.

Claims (11)

1. a Raymond mill comprises the main frame and the grader that are tightly connected, and grader is positioned at the top of main frame;
It is characterized in that said main frame comprises that one has the casing of inner chamber and is positioned at the base that bottom of shell is used to seal said casing; Be fixedly connected with the bull ring seat on the base, the bull ring seat comprises base plate and sidewall, and base plate is positioned on the base, and sidewall is positioned at the inner surface of casing; Inside surface of side wall is fixedly connected with bull ring;
Be fixedly connected with spindle drum on the base plate, be equipped with main shaft on the spindle drum; One end of main shaft is positioned at spindle drum top, is fixedly connected with the plum blossom frame, and the other end is positioned at the spindle drum below, extends in the base and is fixedly connected with belt pulley; Be fixedly connected with grinding roller assembly and perching knife on the plum blossom frame, grinding roller assembly and perching knife are positioned at plum blossom frame top.
2. Raymond mill according to claim 1 is characterized in that, said plum blossom frame is a hierarchic structure, comprises that central boss and week are along dip portion; One end of main shaft is fixedly connected on the central boss of plum blossom frame, and grinding roller assembly and perching knife are uniformly distributed in the week of plum blossom frame along on the dip portion.
3. Raymond mill according to claim 2 is characterized in that, said grinding roller assembly comprises the grinding roller axle, be positioned at the grinding roller on grinding roller axle top and be positioned at the hanger of grinding roller axle bottom; Grinding roller is corresponding with the position of bull ring, and the grinding roller centre has through hole, and the upper end of grinding roller axle is arranged in the through hole of grinding roller; Hanger is provided with the passage of the bottom that is used to insert the grinding roller axle, is provided with ball bearing in the passage; Hanger was fixedly connected along dip portion with the week of plum blossom frame.
4. Raymond mill according to claim 3 is characterized in that, the oil filler point that leads to during the grinding roller axle is provided with along axis, and the top of oil filler point is provided with the bolt that is used to seal, and the bottom of oil filler point is arranged in the passage of hanger.
5. Raymond mill according to claim 3 is characterized in that, also is provided with taper roll bearing between the passage of grinding roller axle and hanger, and said taper roll bearing is used for grinding roller self rotation; The hanger surface is provided with the shutter that is used to seal said grinding roller axle and hanger passage; Be provided with sealing ring between shutter and the taper roll bearing.
6. Raymond mill according to claim 3 is characterized in that, said grinding roller is a back taper self-tightening type grinding roller.
7. Raymond mill according to claim 2 is characterized in that, the grinding roller assembly is identical with the quantity of perching knife, and grinding roller assembly and the perching knife week in the plum blossom frame evenly spaced apart is along on the dip portion.
8. Raymond mill according to claim 7 is characterized in that, the quantity of grinding roller assembly is 3-6.
9. Raymond mill according to claim 3 is characterized in that said Raymond mill also comprises spring; One end of spring is fixedly connected with hanger, and the other end is fixedly connected with the central boss of plum blossom frame.
10. Raymond mill according to claim 9 is characterized in that hanger is provided with spring card slot, is used for being fixedly connected with an end of spring.
11. Raymond mill according to claim 1 is characterized in that, also is provided with feeding mouth on the casing, the grader top is provided with discharging opening.
CN201120178726U 2011-05-31 2011-05-31 Raymond mill Expired - Fee Related CN202143852U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120178726U CN202143852U (en) 2011-05-31 2011-05-31 Raymond mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120178726U CN202143852U (en) 2011-05-31 2011-05-31 Raymond mill

Publications (1)

Publication Number Publication Date
CN202143852U true CN202143852U (en) 2012-02-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201120178726U Expired - Fee Related CN202143852U (en) 2011-05-31 2011-05-31 Raymond mill

Country Status (1)

Country Link
CN (1) CN202143852U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102744126A (en) * 2012-06-16 2012-10-24 阳承君 Multifunctional grinding mill
CN103301909A (en) * 2013-06-21 2013-09-18 王山之 Improved Raymond mill

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102744126A (en) * 2012-06-16 2012-10-24 阳承君 Multifunctional grinding mill
CN103301909A (en) * 2013-06-21 2013-09-18 王山之 Improved Raymond mill

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120215

Termination date: 20160531