CN111729732A - Barrel structure of large-scale modularization mill - Google Patents
Barrel structure of large-scale modularization mill Download PDFInfo
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- CN111729732A CN111729732A CN202010632249.XA CN202010632249A CN111729732A CN 111729732 A CN111729732 A CN 111729732A CN 202010632249 A CN202010632249 A CN 202010632249A CN 111729732 A CN111729732 A CN 111729732A
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- cylinder
- mill
- grinding
- barrel
- flange
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
Abstract
The invention relates to the field of mills, and discloses a barrel structure of a large-scale modular mill, which comprises a plurality of barrels which are mutually connected, wherein two ends of each barrel are respectively connected with an end flange, the outer surface of each barrel is sleeved with at least one annular flange, and one side of each barrel is connected with an excitation device installation base through at least one annular flange; the other side of the barrel is connected with a balance weight through at least one annular flange, and the balance weight is used for adjusting the weight of the two sides of the barrel; the lower ends of the two sides of the cylinder body are respectively provided with a spring base. According to the invention, through the vibrating mill and horizontal arrangement, dry-method and wet-method ore grinding can be realized, the exciting device is arranged on one side of the cylinder, the balance weight is arranged on one side of the cylinder, the spring base is arranged on the cylinder structure and supported by the spring, the large-scale mill is well completed, the processing, manufacturing and transportation are convenient, the modular design of the mill is realized, and the invention has the excellent characteristics of high ball loading rate, low energy consumption, general dry-grinding and wet-grinding and the like.
Description
Technical Field
The invention relates to the field of mills, in particular to a barrel structure of a large modular mill.
Background
A conventional ball mill in the prior art is a rotary cylinder which discharges a material and a medium (such as steel balls) downward after being brought to a certain height, and performs impact grinding between the medium and the material in a discharging process, and in an impact process, a rolling speed difference and a grinding speed difference between grinding media are generated along with a speed difference between the grinding media, so that the material is levigated. The traditional ball mill is mainly impact grinding and is grinding equipment assisted by rolling and grinding, the speed of the material and medium pasting barrel rotation is the critical rotation speed of the traditional ball mill, when the rotation speed of the mill rotating barrel is higher than the critical rotation speed, the material can paste the barrel rotation and does not leak, and along with the larger processing energy of a single device, the diameter of the mill barrel needs to be increased, and the critical rotation speed is lower and lower. The filling rate of the medium is lower and lower, so that the speed difference between rolling and grinding is smaller and smaller, the traditional ball mill is not suitable for the industrial application field of fine grinding or ultrafine grinding at all, the large-scale industrial application of fine grinding and ultrafine grinding can be realized only by increasing the speed difference between rolling and grinding or completely removing impact grinding, and the traditional ball mill cannot be applied to the mineral grinding field of fine grinding or ultrafine grinding at all due to the limitations of impact grinding, critical rotating speed and medium filling rate. In addition, the impact between the media causes the plastic deformation of the material, the plastic deformation is finally expressed as the abrasion of the media and the heating of the media, and the plastic deformation cannot be converted into the grinding capacity of the mineral, so that the effective work of the mill is greatly reduced.
With the economic efficiency and environmental protection of the efficient utilization of minerals and the special requirements on the mineral morphology, the fine grinding and the ultra-fine grinding of the minerals become very difficult. While the conventional fine grinding or ultrafine grinding equipment (such as a vertical spiral stirring mill or a horizontal spiral stirring mill) is only suitable for wet grinding and cannot dry grinding, the fine grinding or ultrafine grinding equipment increases the flow speed of media in a mode of stirring grinding ball media, and grinding is realized by adopting a mode of increasing energy input density, although the grinding mode can realize fine grinding or ultrafine grinding, after the flow speed of the media is increased to a certain degree, the media are subjected to plastic deformation due to strong extrusion, the plastic deformation is finally converted into heat, the energy consumption is overlarge, the efficiency of converting input energy into grinding energy is too low, and the mineral processing cost in the field of wet grinding or ultrafine grinding is not high.
In the prior known technology, a single-cylinder vibration mill or a multi-cylinder vibration mill is used as equipment for dry-method grinding and fine milling, the vibration mill of the type mostly adopts a central driving mode, a cylinder body moves circularly around the center, the moving mode has the phenomenon that steel ball media collide violently, so that the energy consumption is overlarge, meanwhile, the large-scale industrial production cannot be realized due to the structural limitation and the volume limitation of the cylinder body, and the vibration mill can only realize the small-batch and intermittent ultrafine powder processing and cannot well meet the requirements of large-scale, high ball loading rate, low energy consumption and ultrafine mill large-scale production which is universal for dry milling and wet milling.
Therefore, it is necessary to develop a device suitable for fine grinding and ultra-fine grinding, and the main requirements of the device are as follows: large-scale, high ball loading rate, low energy consumption, general dry grinding and wet grinding and the like.
Disclosure of Invention
The present invention provides a barrel structure of a large modular mill, thereby solving the above-mentioned problems of the prior art.
A barrel structure of a large modular mill comprises a plurality of mutually connected barrels (01), wherein end flanges (03) are respectively connected to two ends of each barrel (01), at least one annular flange (04) is sleeved on the outer surface of each barrel (01), and one side of each barrel is connected with an excitation device installation base (05) through the at least one annular flange (04); the other side of the cylinder body (01) is connected with a counterweight (06) through at least one annular flange (04), and the counterweight (06) is used for adjusting the weight of the two sides of the cylinder body (01); the lower ends of the two sides of the cylinder body (01) are respectively provided with a spring base (07).
Further, the cylinder (01) is fixedly connected with the annular flange (04) through welding or bolts.
Furthermore, two adjacent cylinders (01) are connected through an end flange (03).
Further, the exciting device mounting base (05) is connected with a vibration exciter.
Furthermore, the bottom of the spring seat (05) is connected with a plurality of springs.
Furthermore, the bottom of the cylinder body (01) is provided with a plurality of release holes (08) and a plurality of release hole plugs (10) which can be inserted into the plurality of release holes (08).
Furthermore, one side of the release hole (08) positioned outside the cylinder body (01) is provided with a release hole flange (09), the release hole plug (10) is provided with a release hole plug flange (11), and the release hole plug (10) can be connected with the release hole (08) through the release hole flange (09).
Furthermore, a wear-resistant lining plate (02) is paved in the cylinder body (01).
Furthermore, the cylinder body (01) is of a cylindrical structure with two through ends.
The invention has the beneficial effects that: as a cylinder structure of a large-scale modularized high-energy mill, each cylinder is provided with an independent exciting device installation base and a balance weight, two ends of each cylinder are respectively provided with an independent end flange, and each cylinder can be connected with other cylinders, so that the length of the mill is prolonged. This provides a unique solution for the realization of high-energy mills for continuous grinding of ores. According to the invention, the vibrating mill is horizontally arranged, so that dry-method and wet-method ore grinding can be realized, the exciting device is arranged on one side of the mill cylinder, the counterweight is arranged on one side of the mill cylinder, the spring base is arranged on the structure of the mill cylinder and supported by the spring, the large-scale mill is well completed, the processing, manufacturing and transportation are convenient, and the modular design of the mill is realized. Has the excellent characteristics of high ball loading rate, low energy consumption, general use in dry grinding and wet grinding, and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments are briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a cylinder provided in this embodiment.
Fig. 2 is a schematic structural diagram of a release hole provided in the first embodiment.
01. The device comprises a cylinder body 02, a wear-resistant lining plate 03, an end flange 04, an annular flange 05, an excitation device mounting base 06, a counterweight 07, a spring seat 08, a release hole 09, a release hole flange 10, a release hole plug 11 and a release hole plug flange.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, and it should be understood that the terms so used are interchangeable under appropriate circumstances and are merely used to describe the distinguishing manner in which the embodiments of the present invention distinguish between similar elements. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
In one embodiment, a cylinder structure of a large modular mill comprises a plurality of cylinders 01 connected with each other. As shown in fig. 1, a wear-resistant lining board 02 is laid in a cylinder 01, and the cylinder 01 is a cylindrical structure with two through ends. End flanges 03 are welded at two ends of each barrel 01 respectively, and two adjacent barrels 01 are connected through the end flanges 03 respectively. The outer surface cover of barrel 01 is equipped with at least one annular flange 04, and one side of barrel is connected with excitation device installation base 05 through at least one annular flange 04, and excitation device installation base 05 is connected with the vibration exciter. The other side of the cylinder body 01 is connected with a counterweight 06 through at least one annular flange 04, and the counterweight 06 is used for adjusting the weight of the two sides of the cylinder body 01; spring bases 07 are symmetrically arranged at the lower ends of two sides of the cylinder body 01 respectively, the two spring seats 07 are in a left-right symmetrical state, and the spring seats 07 have the function of mounting springs. The bottom of spring seat 05 is connected with a plurality of springs.
The outer surface of the cylinder 01 is fixedly connected with at least one annular flange 04 surrounding the cylinder 01 by welding or bolts.
In order to discharge the medium or the material, one or more release holes 08 are formed in the bottom of the cylinder 01, and the release holes 08 have a function of releasing the material or the medium. As shown in fig. 2, one side of the release hole 08 is provided with a release hole flange 09, one side of the release hole 08 is located outside the cylinder 01, and the release hole plug 10 having a release hole plug flange 11 is inserted into the release hole 08 through the release hole flange 09. The release hole plug flange 11 and the release hole flange 09 are connected through bolts or clamping devices.
In other embodiments of the invention, the material or medium can be discharged by providing a release hole at the discharging device instead of providing a release hole at the bottom of the cylinder.
When the wet grinding method is adopted for wet grinding, a feeding end device and a wet discharging end device of the large-scale modular mill are respectively connected with two ends of the cylinder structure through end flanges. The wet-type discharge end device comprises a wet-type discharge end cover and an overflow discharge box, a plurality of end cover overflow ports are formed in the wet-type discharge end cover from high to low, the plurality of end cover overflow ports are respectively connected with a plurality of first flow guide pipes, and the end cover overflow ports are connected with the first flow guide pipes through first flexible connection structures. A plurality of first honeycomb ducts stretch into the overflow discharging box and are respectively connected with a plurality of overflow adjusting pipes capable of adjusting the height in the overflow discharging box, and the liquid level position can be adjusted by adjusting the height of the overflow adjusting pipes, so that the control on the fineness of ore grinding is realized. The bottom of discharge end cover can be provided with first release hole, can realize being connected of material and overflow control pipe through first release hole, and first release hole is equivalent to the end cover overflow mouth this moment. The end cover release hole plug can be installed in the first release hole, and the medium in the mill can be discharged by drawing the end cover release hole plug inserted into the first release hole, so that the abrasion-resistant lining plate in the mill can be overhauled.
When the dry-method ore grinding is carried out by adopting the dry-method ore grinding device, the feeding end device and the dry-type discharging end device of the large-scale modular mill are respectively connected with two ends of the cylinder structure through end flanges. The dry type discharging end device comprises a dry type discharging end cover, a feed opening, a second flexible connection structure and a second flow guide pipe are arranged on the lower portion of the dry type discharging end cover, the feed opening and the second flow guide pipe are respectively provided with a feed opening flange and a second flow guide pipe flange, and two ends of the second flexible connection structure are respectively connected with the feed opening flange and the second flow guide pipe flange. The lower part of the end face of the end cover of the dry type discharging end can be provided with a second release hole, and the discharge of media in the mill can be realized by drawing away a release hole plug inserted into the second release hole, so that the overhaul of a wear-resistant lining plate in the mill is realized.
The invention is suitable for large-scale modularized high-energy mills, each cylinder body is provided with an independent exciting device installation base and a balance weight, and each cylinder body can be connected with other cylinder bodies, so that the length of the mill is prolonged. This provides a unique solution for the realization of high-energy mills for continuous grinding of ores. According to the invention, the vibratory mill is horizontally arranged, so that dry-method and wet-method ore grinding can be realized, the mill cylinder is supported by the spring through the spring base on the cylinder, the modularization and the large-scale of the mill are well completed, and the processing, the manufacturing and the transportation are convenient.
The invention can make the two sides of the mill cylinder generate amplitude difference by one side excitation and the other side only by the alternative energy storage and release capacity of the spring, realizes the rolling of the steel ball medium by the amplitude difference, when the speed of the excitation side is fast enough, the rolling speed difference of the steel ball at the excitation side can exceed the critical speed of the traditional ball mill, the invention breaks through the limit of the critical speed of the traditional ball mill, greatly enlarges the rolling and grinding speed difference between the steel ball medium, because the amplitude is less than 20mm, the steel ball is difficult to be brought to a certain height, and the impact grinding between the steel ball medium is also completely avoided, thereby avoiding the plastic deformation of the steel ball medium, and converting more input energy into the grinding energy caused by the rolling and grinding speed difference.
The revolution speed (medium linear velocity) of the steel ball medium in the cylinder of the invention is obviously lower than that of mills with stirring devices, such as a spiral stirring mill or a disc mill, and the like, and the energy density of the high-energy mill is lower than that of the mill with the stirring devices, so that the volume of the cylinder of the mill needs to be increased, thereby realizing high ball loading rate and high energy conversion rate of the mill. The invention can well realize the connection between the cylinder bodies, thereby increasing the volume of the cylinder body of the mill, and further realizing the excellent characteristics of high medium filling rate, high energy utilization rate and low energy consumption.
In conclusion, the cylinder structure designed by the invention has the characteristics of large size, high ball loading rate and low energy consumption, is an ultra-fine grinding device which is universal for dry grinding and wet grinding, is different from any known grinding equipment for fine grinding and ultra-fine grinding, and the appearance of the device is bound to subvert the processes of fine grinding and ultra-fine grinding for mineral processing and subvert the traditional processing processes in the fields of building materials and powder processing.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements should also be considered within the scope of the present invention.
Claims (8)
1. The cylinder structure of the large modular mill is characterized by comprising a plurality of cylinders (01) which are mutually connected, wherein end flanges (03) are respectively connected to two ends of each cylinder (01), at least one annular flange (04) is sleeved on the outer surface of each cylinder (01), and an excitation device mounting base (05) is connected to one side of each cylinder through the at least one annular flange (04); the other side of the barrel body (01) is connected with a counterweight (06) through the at least one annular flange (04), and the counterweight (06) is used for adjusting the weight of the two sides of the barrel body (01); and spring bases (07) are respectively arranged at the lower ends of the two sides of the cylinder body (01).
2. A cylinder structure of a large modular mill according to claim 1, characterized in that the cylinder (01) is welded or bolted fixedly to the annular flange (04).
3. A large modular mill shell structure, according to claim 1 or 2, characterized in that two adjacent shells (01) are connected by means of an end flange (03).
4. A cylinder structure of a large modular mill according to claim 3, characterized in that the exciter is connected to the exciter mounting base (05).
5. A cylinder module of a large modular mill according to claim 1 or 4, characterized in that several springs are connected to the bottom of the spring seat (05).
6. A cylinder structure of a large modular mill according to claim 1, characterized in that the bottom of the cylinder (01) is provided with a number of discharge holes (08), and a number of discharge hole plugs (10) into which the number of discharge holes (08) can be inserted.
7. A cylinder structure of a large modular mill according to claim 6, characterized in that the side of the discharge hole (08) outside the cylinder (01) is provided with a discharge hole flange (09), the discharge hole plug (10) is provided with a discharge hole plug flange (11), and the discharge hole plug (10) can be flanged with the discharge hole (08) through the discharge hole flange (09).
8. A barrel structure of a large modular mill according to claim 1 or 7, characterized in that a wear resistant lining plate (02) is laid inside the barrel (01).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010632249.XA CN111729732B (en) | 2020-07-03 | 2020-07-03 | Barrel structure of large-scale modularization mill |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010632249.XA CN111729732B (en) | 2020-07-03 | 2020-07-03 | Barrel structure of large-scale modularization mill |
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| CN111729732A true CN111729732A (en) | 2020-10-02 |
| CN111729732B CN111729732B (en) | 2021-05-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114247526A (en) * | 2021-12-27 | 2022-03-29 | 北方重工富勒（沈阳）矿业有限公司 | Barrel structure and tower mill |
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| CN2524834Y (en) * | 2002-02-07 | 2002-12-11 | 津江超细粉体(武汉)有限公司 | Unit combined mill tube |
| US20080210797A1 (en) * | 2005-04-27 | 2008-09-04 | Alexander Hagedorn | Tubular Mill |
| CN101869862A (en) * | 2010-06-30 | 2010-10-27 | 邹平金刚新材料有限公司 | High-frequency efficient energy-saving material grinder |
| CN101947486A (en) * | 2010-10-08 | 2011-01-19 | 南京工程学院 | Variable stiffness double-mass two-stage pendulum chaotic vibromill |
| CN203695148U (en) * | 2013-12-25 | 2014-07-09 | 长沙微粉制药机械有限公司 | Ceramic vibrator mill |
| CN207204241U (en) * | 2017-09-04 | 2018-04-10 | 河南克拉钻石有限公司 | Increase tank ball-milling finishing machine |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2524834Y (en) * | 2002-02-07 | 2002-12-11 | 津江超细粉体(武汉)有限公司 | Unit combined mill tube |
| US20080210797A1 (en) * | 2005-04-27 | 2008-09-04 | Alexander Hagedorn | Tubular Mill |
| CN101869862A (en) * | 2010-06-30 | 2010-10-27 | 邹平金刚新材料有限公司 | High-frequency efficient energy-saving material grinder |
| CN101947486A (en) * | 2010-10-08 | 2011-01-19 | 南京工程学院 | Variable stiffness double-mass two-stage pendulum chaotic vibromill |
| CN203695148U (en) * | 2013-12-25 | 2014-07-09 | 长沙微粉制药机械有限公司 | Ceramic vibrator mill |
| CN207204241U (en) * | 2017-09-04 | 2018-04-10 | 河南克拉钻石有限公司 | Increase tank ball-milling finishing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114247526A (en) * | 2021-12-27 | 2022-03-29 | 北方重工富勒（沈阳）矿业有限公司 | Barrel structure and tower mill |
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| CN111729732B (en) | 2021-05-28 |
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