CN102755918A - Disc mill - Google Patents
Disc mill Download PDFInfo
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- CN102755918A CN102755918A CN2012102748569A CN201210274856A CN102755918A CN 102755918 A CN102755918 A CN 102755918A CN 2012102748569 A CN2012102748569 A CN 2012102748569A CN 201210274856 A CN201210274856 A CN 201210274856A CN 102755918 A CN102755918 A CN 102755918A
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- disc
- boss
- disc mill
- movable grinding
- fixed millstone
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Abstract
The invention discloses a disc mill which comprises a movable milling disc (1) and a fixed milling disc (2), two bosses (4) are arranged on a central plane of a processing material cavity (3) of the movable milling disc (1), a material throwing groove (5) is arranged between the two bosses (4), and protruding petals (6) are arranged on the outsides of the two bosses (4). The disc mill has the advantages of overcoming the defect that the movable milling disc of a horizontal type disc mill cannot drive all materials to be sufficiently smashed, lamination smashing along a circumferential normal direction in the processing material cavity of the milling disc is achieved, processed materials can be finely smashed, and a choice is provided for optimizing the disc mill.
Description
Technical field
The present invention relates to a kind of disintegrating apparatus, particularly a kind of mill of disc mill.
Background technology
Disc mill is to specify the equipment that uses in the broken appearance of DZ/T 0130.2-2006 " People's Republic of China's geological and mineral industry standard---rock mineral analysis specimen preparation " the gold ore sample flow process.Its groundwork executive item is made up of movable grinding disc and fixed millstone.Fixed millstone is connected with body, and the charging hole of fixed millstone communicates with feeding-passage on the body.Transmission main shaft is connected on movable grinding disc and the body, and the fine setting locking device is housed on transmission main shaft, can axially finely tune movable grinding disc, meets the granularity requirements of mineral preparation appearance to guarantee discharging slit between movable grinding disc and the fixed millstone.Conical surface on the tradition fixed millstone and movable grinding disc conical surface have formed a preparation appearance jointly and have added the labor and materials chamber, and processed preparation material appearance gets into via charging hole and adds the labor and materials chamber.On the conical surface of movable grinding disc and fixed millstone, 4 fixing protruding lobes are arranged respectively.All there is an abrasive material shaping band at the edge of two mills.
Movable grinding disc rotates around major axes orientation under the drive of motor.Be stored in the preparation material appearance in the movable grinding disc, under the promotion of protruding lobe, do high speed rotary motion.And drive all with this and add in the labor and materials chamber material and do corresponding motion, preparation material appearance through stressed, motion, change the direction of motion and realize pulverizing, then along slit between fixed millstone and the movable grinding disc and abrasive material shaping band discharge preparation kind.
Usually when analyzing disc mill, using lamination pulverizing and shear pulverizer to manage analyzes.
Lamination is pulverized and to be meant the bed of material is utilized under the situation of pressure effect, when pressure hour, the altering a great deal of volume; Between the material this moment carry out closely knit, make between the particle lean on squeeze near, the maintenance excellent contact; Stress rises gradually then, and interaction energy mutual between the particle transmits stress, behind the arrival granule strength; The broken time takes place in particle, and simultaneously owing to the geometric properties of particle and the difference of intensity property, a bigger range of stress takes place in fragmentation.Because the continuous appearance of the incident of pulverizing, the environment between the particle are also constantly changing, pulverized particle need be rearranged the position, so the volume of material is still in continuous variation.Enough when the pulverizing time, a coarse granule has been among the fine grain encirclement, and power transmission quite disperses, and improve stress this moment, mainly makes granule closely contact each other, has just produced clustering phenomena.Utilize the process of compression that above-mentioned three processes of closely knit---pulverizing---conglomeration all should be arranged.
Shear to pulverize the effect that is meant the protruding lobe of fixed millstone and hindered the material that fixed millstone adds in labor and materials the chamber in and rotate (frictional drive), so, the storeroom generation relative motion of the material contact-making surface in two mills add the labor and materials chamber.Receive certain pressure and shearing force effect between the material surface, when shear stress reached the shear strength limit of material, material was just pulverized
Traditional horizontal type structure (the mill face is perpendicular to horizontal plane) defective is: the material between the protruding lobe of fixed millstone causes adding the labor and materials cavity pressure and reduces feed back because of lacking geometrical constraint.The rotation of movable grinding disc as a result can't realize driving all materials that get in the mill and fully pulverize, and lamination pulverizing and shearing grindability are lower, thus the granularity of influence preparation appearance.
Summary of the invention
The technical problem that the present invention will solve is: movable grinding disc can drive the material that all entering add the labor and materials chamber and fully pulverize, and promotes lamination simultaneously and pulverizes and shear grindability, obtains more fine-grained comminuting matter.
The technical scheme that the present invention adopts is: a kind of disc mill, comprise movable grinding disc and fixed millstone, and adding of movable grinding disc has two boss on the central plane of labor and materials chamber, and poor for material casting between two boss, the two boss outside is protruding lobe.The poor width of material casting is not less than fixed millstone charging hole diameter.Protruding lobe is totally two and symmetrical distribution point-blank.The boss top curve surface is a taper seat, and lateral surface is the face of cylinder.Boss top taper seat is parallel with the fixed millstone taper seat, the face of cylinder, outside diameter and top taper seat equal diameters.
Improvement effect of the present invention can be pulverized and shear pulverizing two aspects from lamination and explain:
Lamination is pulverized: through to the force analysis of mill of the present invention to the material crushing process, can find out:
(1) when the material in the material casting groove along the circumferential direction be thrown into fixed millstone and movable grinding disc add the labor and materials chamber time; The material that along the circumferential direction fixed millstone and movable grinding disc is added in the labor and materials chamber is bestowed normal pressure simultaneously, causes the material that adds in the labor and materials chamber to get into the phase I that lamination is pulverized---and closely knit.Make between the particle by squeezing closely, keep excellent contact, stress rises gradually then, and interaction energy mutual between the particle transmits stress.
(2) after the boss outer rim circular arc tangential line direction of material casting groove is squeezed to sealing with material, add the labor and materials chamber, cause original solid accumulation height to reduce, volume density increases; At this moment, pressure sharply increases, and the gap between the material particles is more and more littler; Transmit extrusion stress between the particle each other; Each moves in the circulation adjacent particle and changes its relative bearing, and the interaction force vector also constantly changes, and material receives external pressure and does the time spent and can produce compression; Cause internal stress to concentrate; When stress reached particle in a certain the most weak bursting stress on axially, this particle will be in this chipping and pulverizing behavior on axially, thereby had realized that the bed of material pulverizes second stage---the process of pulverizing.
(3) when shredding stage finishes, the compaction rate of material is very high, and broken particle can produce conglomeration.Along with the rotation of movable grinding disc, material contact-making surface place has been crushed to the material that is equal to or less than slit between moving, fixed millstone, under the effect of frictional drive, dishes out along the endless belt, slit between two mills.
Because closely knit---pulverizing---conglomeration is a process feature of realizing that lamination is pulverized, therefore, can think to have possessed the function that lamination is pulverized to improving the disc mill after movable grinding disc designs.
Shear and pulverize: in shearing crushing process, just because of packing height, the pressure that adds between the material particles in the labor and materials chamber is big, the relative displacement that two adjacent small material intervals are taking place equally causes the faying face of little storeroom to receive shear action and shearing stress equally.Thereby cause material can pulverize carefullyyer.
The beneficial effect that the present invention brings:
(1) movable grinding disc increases material casting groove structure, makes movable grinding disc can drive all materials that get in the mill and fully pulverizes.
(2), increased in mill adds the labor and materials chamber along the lamination of circumference normal direction and pulverized function through the material casting effect of material casting groove and the constraint pressurization of boss.
(3) through to the architecture advances of movable grinding disc, add that packing between the material particles the labor and materials chamber in increases, pressure is big, produced living shearing pulverizing equally at little storeroom, cause the material can be pulverized thinner.
Description of drawings
Fig. 1 is the profile of traditional disc mill;
Fig. 2 is the profile of the disc mill after improving;
Fig. 3 is the disc mill movable grinding disc sketch map after improving.
The specific embodiment
A kind of disc mill comprises movable grinding disc 1 and fixed millstone 2.Adding of movable grinding disc 1 is provided with two boss 4 on 3 central planes of labor and materials chamber.Have a material casting to be pickled with grains or in wine 5 between two boss 4, poor 5 width of material casting are not less than fixed millstone 2 charging hole diameters.Boss 4 outsides are provided with two protruding lobes 6, and protruding lobe 6 is symmetrically distributed point-blank.Boss 4 top curve surface are taper seat, and lateral surface is the face of cylinder.Boss 4 top taper seats are parallel with fixed millstone 2 taper seats, the face of cylinder, outside diameter and top taper seat equal diameters.Preparation material appearance gets into via the charging hole on the fixed millstone 2 and adds labor and materials chamber 3, and movable grinding disc 1 rotates around major axes orientation under the drive of motor, and the material after the pulverizing is dished out through the endless belt, slit between movable grinding disc 1 and the fixed millstone 2.
Claims (5)
1. disc mill; Comprise movable grinding disc (1) and fixed millstone (2); It is characterized in that: adding on the central plane of labor and materials chamber (3) of movable grinding disc (1) has two boss (4), is material casting poor (5) between two boss (4), and two boss (4) outside is protruding lobe (6).
2. a kind of disc mill according to claim 1 is characterized in that: poor (5) width of material casting and fixed millstone (2) are not less than the charging hole diameter.
3. a kind of disc mill according to claim 1 is characterized in that: protruding lobe (6) is totally two and symmetrical distribution point-blank.
4. a kind of disc mill according to claim 1 is characterized in that: boss (4) top curve surface is a taper seat, and lateral surface is the face of cylinder.
5. a kind of disc mill according to claim 4 is characterized in that: boss (4) top taper seat is parallel with fixed millstone (2) taper seat, the face of cylinder, outside diameter and top taper seat equal diameters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210274856.9A CN102755918B (en) | 2012-08-03 | 2012-08-03 | Disc mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210274856.9A CN102755918B (en) | 2012-08-03 | 2012-08-03 | Disc mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102755918A true CN102755918A (en) | 2012-10-31 |
| CN102755918B CN102755918B (en) | 2014-07-09 |
Family
ID=47050706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210274856.9A Expired - Fee Related CN102755918B (en) | 2012-08-03 | 2012-08-03 | Disc mill |
Country Status (1)
| Country | Link |
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| CN (1) | CN102755918B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017076382A1 (en) * | 2015-11-04 | 2017-05-11 | Netzsch-Feinmahltechnik Gmbh | Crushing device and method for crushing raw materials |
| CN115069353A (en) * | 2022-06-22 | 2022-09-20 | 陕西地矿第一地质队有限公司 | Disc crusher |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4712745A (en) * | 1985-06-06 | 1987-12-15 | Leith William C | Rotating disc wood chip refiner |
| US4767070A (en) * | 1985-12-28 | 1988-08-30 | Masamichi Nagao | Grinder for use in grinding apparatus |
| JP2006312136A (en) * | 2005-05-09 | 2006-11-16 | Masatomo Nishio | Milling method and milling apparatus |
| CN102274776A (en) * | 2011-08-23 | 2011-12-14 | 刘永恒 | Efficient integrated millstone for mill |
| CN202752054U (en) * | 2012-08-03 | 2013-02-27 | 贵阳探矿机械厂 | Disk mill |
-
2012
- 2012-08-03 CN CN201210274856.9A patent/CN102755918B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4712745A (en) * | 1985-06-06 | 1987-12-15 | Leith William C | Rotating disc wood chip refiner |
| US4767070A (en) * | 1985-12-28 | 1988-08-30 | Masamichi Nagao | Grinder for use in grinding apparatus |
| JP2006312136A (en) * | 2005-05-09 | 2006-11-16 | Masatomo Nishio | Milling method and milling apparatus |
| CN102274776A (en) * | 2011-08-23 | 2011-12-14 | 刘永恒 | Efficient integrated millstone for mill |
| CN202752054U (en) * | 2012-08-03 | 2013-02-27 | 贵阳探矿机械厂 | Disk mill |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017076382A1 (en) * | 2015-11-04 | 2017-05-11 | Netzsch-Feinmahltechnik Gmbh | Crushing device and method for crushing raw materials |
| CN108348919A (en) * | 2015-11-04 | 2018-07-31 | 耐驰精细研磨技术有限公司 | Grinding device and method for comminuted starting materials |
| RU2702767C1 (en) * | 2015-11-04 | 2019-10-11 | Неч-Файнмальтехник Гмбх | Grinder and method of raw materials grinding |
| US11235335B2 (en) | 2015-11-04 | 2022-02-01 | Netzsch-Feinmahltechnik Gmbh | Crushing device and method for crushing raw materials |
| CN115069353A (en) * | 2022-06-22 | 2022-09-20 | 陕西地矿第一地质队有限公司 | Disc crusher |
| CN115069353B (en) * | 2022-06-22 | 2023-08-18 | 陕西地矿第一地质队有限公司 | Disc grinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102755918B (en) | 2014-07-09 |
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Granted publication date: 20140709 Termination date: 20170803 |
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