CN220371180U - Isa mill agitator - Google Patents

Abstract

The utility model provides an Isa mill stirrer, and relates to the technical field of ore grinding. Wherein, ai Sa mill agitator includes main shaft, a plurality of agitator disks, a plurality of axle sleeves, agitator tank and classifying disk; the stirring discs are provided with grinding disc perforations, and a plurality of stirring discs are arranged on the main shaft at intervals along the axial direction of the main shaft; the classifying disc is arranged at the tail end of the main shaft; a shaft sleeve is arranged between two adjacent stirring discs, and a shaft sleeve is arranged between the classifying disc and one stirring disc adjacent to the classifying disc; the main shaft, the plurality of stirring discs, the classifying disc and the plurality of shaft sleeves are all arranged in the stirring barrel; wherein the arrangement of the plurality of stirring discs comprises at least one of the following: the plurality of stirring plates are arranged in a mode of gravity center offset, the plurality of stirring plates are arranged in a mode of angle offset, and the grinding disc perforation on the plurality of stirring plates is arranged in a mode of distance offset. Therefore, by optimizing the arrangement mode of the stirring plates, the technical effect of improving the grinding efficiency can be achieved.

Description

Isa mill agitator

Technical Field

The utility model relates to the technical field of ore grinding, in particular to an Isa mill stirrer.

Background

Ai Sa mill is used as stirring grinding equipment for fine grinding and superfine grinding, and is widely applied to the fields of mines, chemical industry, energy sources, metallurgy, pharmacy and the like. The grinding principle is as follows: the ore pulp is stably fed into the mill after slag separation, the speed reducer drives the main shaft to operate through the control motor, the high-speed rotating stirrer drives the grinding medium and the materials in the cylinder to do axial movement and autorotation movement, and the linear speed of the tail end of the grinding disc is 21-23 m/s during operation. The grinding medium and the grinding medium, the grinding medium and the inner wall of the stirrer and the grinding barrel are enabled to be operated at high speed through the stirring, and the granular materials in the slurry are dispersed, crushed and ground through the impact, extrusion, friction and shearing actions until the preset particle fineness is reached. The ore discharging end of the mill is provided with a classifying disc, and the medium is controlled in the mill to smoothly discharge qualified products.

Although the development of stirring and grinding equipment, particularly stirring and grinding, has been greatly stimulated in recent years with the rapid development of new material fields, the grinding efficiency of the Ai Sa mill stirrer is low due to the unreasonable arrangement of a plurality of stirring plates in the current Ai Sa mill stirrer.

Disclosure of Invention

The embodiment of the utility model aims to provide an Isa mill stirrer so as to achieve the technical effect of improving the ore grinding efficiency.

In order to solve the technical problems, the embodiment of the utility model provides the following technical scheme:

the application provides an Isa mill stirrer, which comprises a main shaft, a plurality of stirring plates, a plurality of shaft sleeves, a stirring barrel and a grading plate; the stirring discs are provided with grinding disc perforations, and a plurality of stirring discs are arranged on the main shaft at intervals along the axial direction of the main shaft; the classifying disc is arranged at the tail end of the main shaft; a shaft sleeve is arranged between two adjacent stirring discs, and a shaft sleeve is arranged between the classifying disc and one stirring disc adjacent to the classifying disc; the main shaft, the plurality of stirring discs, the classifying disc and the plurality of shaft sleeves are all arranged in the stirring barrel; wherein the arrangement of the plurality of stirring discs comprises at least one of the following: the plurality of stirring plates are arranged in a mode of gravity center offset, the plurality of stirring plates are arranged in a mode of angle offset, and the grinding disc perforation on the plurality of stirring plates is arranged in a mode of distance offset.

Further, the stirring plates are arranged in a regular polygon; or the stirring discs are arranged in a non-regular polygon shape; or one part of the stirring discs is arranged in a regular polygon, and the other part is arranged in a non-regular polygon.

Further, the regular polygon is a regular octagon; the non-regular polygon is a non-regular octagon.

Further, the plurality of stirring plates comprise a plurality of groups of stirring assemblies, and the whole gravity center of each group of stirring assemblies is arranged on the main shaft; the number of agitator disks in each set of agitator assemblies is arranged in an irregular number.

Further, when the abrasive disc perforations on the plurality of stirring discs are arranged in a distance offset manner, the offset range of the abrasive disc perforations on two adjacent stirring discs is not increased by a fixed amount, and the offset range is 5-1000 mm.

Further, when the plurality of stirring plates are arranged in a manner of center of gravity shifting, the range of center of gravity shifting of two adjacent stirring plates is not increased by a fixed amount, and the range of center of gravity shifting is 5 mm-1000 mm.

Further, when the plurality of stirring plates are arranged in an angularly offset manner, the range of angular offset of the adjacent two stirring plates is not increased by a fixed amount, and the increasing range is 0 to 45 °.

Further, the center of gravity of the Ai Sa mill agitator falls on the main shaft.

Further, the stirring plate is arranged in a non-regular octagon shape, the stirring plate is provided with a mounting hole, and the hole center of the mounting hole is eccentrically arranged in the non-regular octagon shape; the two adjacent stirring plates are arranged in a mode of gravity center offset.

Further, the stirring plates are all arranged in a regular octagon shape, each stirring plate is provided with a mounting hole, and the hole center of each mounting hole is overlapped with the centroid of the regular octagon shape; the two adjacent stirring discs are arranged in an angle offset manner; the mill perforations on two adjacent stirring discs are arranged in a radial offset manner.

Compared with the prior art, the Ai Sa mill stirrer provided by the utility model has the advantage that the technical effect of improving the ore grinding efficiency can be realized by optimizing the arrangement mode of a plurality of stirring discs.

Specifically, when a plurality of stirring plates are arranged in such a manner that the center of gravity is shifted, the stirring space of the Ai Sa mill stirrer becomes large as a whole, so that the grinding efficiency can be improved.

When a plurality of agitator disks adopt the mode of angle offset to arrange, when the mill perforation of being ground the material through first agitator disk reaches the mill perforation of second agitator disk, still need pass through the angle offset distance, the grinding route is prolonged by the grinding material under the same stirring space to make the grinding number of times of being ground the material obtain improving, and then can promote grinding efficiency.

When the millstone perforation on a plurality of agitator disks adopts the mode of distance deviation to arrange, when the millstone perforation of being ground material through first agitator disk reaches the millstone perforation of second agitator disk, still need through millstone perforation offset distance, the grinding route of being ground material under the same stirring space becomes longer to make the grinding number of times of being ground material obtain improving, and then can promote grinding efficiency.

In addition, when a plurality of agitator disks adopt the mode of focus skew to arrange, not only can improve grinding efficiency, the stirring space is bigger, can hold more ground material to the large-scale design of Ai Sa mill agitator still is favorable to. Wherein, the greater the degree of gravity center deviation, the higher the degree of maximization; the smaller the degree of center of gravity shift, the lower the degree of enlargement.

When a plurality of stirring discs are arranged in an angle offset mode, not only can the grinding efficiency be improved, but also the ground material particles can be ground more finely after the grinding times of the ground material are increased, so that the grinding and grain refining requirements can be controlled. If the grinding requirements on the particles are finer, the offset distance between every two stirring discs is larger; if the grinding requires coarser particles, the offset distance between every two stirring discs is smaller.

When the millstone perforation on a plurality of stirring plates adopts a mode of distance deviation to arrange, not only can the milling efficiency be improved, after the milling times of the milled materials are increased, the milled material particles can be milled more finely, thereby being beneficial to controlling the milling grain refining requirement. Wherein, if the grinding is finer on the particle, the offset distance of the grinding disc perforation between every two stirring discs is bigger. If the grinding is coarser on the particle, the offset distance of the grinding disc perforation between every two stirring discs is smaller.

Drawings

The above, as well as additional purposes, features, and advantages of exemplary embodiments of the present utility model will become readily apparent from the following detailed description when read in conjunction with the accompanying drawings. In the drawings, wherein like or corresponding reference numerals indicate like or corresponding parts, there are shown by way of illustration, and not limitation, several embodiments of the utility model, in which:

FIG. 1 schematically illustrates a schematic exploded view of a portion of the structure of an alternative embodiment Ai Sa mill agitator of the present utility model;

FIG. 2 schematically illustrates a schematic diagram of a non-regular octagonal abrasive disc of an alternative embodiment of the Ai Sa mill agitator of the utility model;

FIG. 3 schematically illustrates a schematic diagram of a regular octagonal abrasive disc of an alternative embodiment of the Ai Sa mill agitator of the utility model;

FIG. 4 schematically illustrates an assembled structure of a Ai Sa mill agitator in a large scale operation of example 1 of the present utility model;

fig. 5 schematically shows a cross-sectional view in the direction A-A in fig. 3:

fig. 6 schematically shows an assembly structure of a Ai Sa mill agitator in the case of the fine-grained operation of example 2 in the present utility model:

fig. 7 schematically shows a cross-sectional view in the direction B-B in fig. 6.

Reference numerals illustrate:

1. a main shaft; 2. a stirring plate; 201. a mounting hole; 3. a shaft sleeve; 4. perforating the millstone; 5. a stirring barrel; 6. a classifying disk.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. The technical means used in the examples are conventional means well known to those skilled in the art unless otherwise indicated.

It is noted that unless otherwise indicated, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. Relational terms such as "first" and "second", and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "coupled," "connected," and the like are to be construed broadly and may be, for example, fixedly attached, detachably attached, or integrally formed; can be mechanically or electrically connected; either directly or indirectly via an intermediary. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.

As shown in fig. 1 to 7, the present application provides an isamill mixer comprising a main shaft 1, a plurality of mixing disks 2, a plurality of shaft sleeves 3, a mixing tub 5 and a classifying disk 6; the stirring discs 2 are provided with grinding disc perforations 4, and a plurality of stirring discs 2 are arranged on the main shaft 1 at intervals along the axial direction of the main shaft 1; the classifying disc 6 is arranged at the tail end of the main shaft 1; a shaft sleeve 3 is arranged between two adjacent stirring discs 2, and a shaft sleeve 3 is arranged between a classifying disc 6 and one stirring disc 2 adjacent to the classifying disc; the main shaft 1, the plurality of stirring discs 2, the classifying disc 6 and the plurality of shaft sleeves 3 are all arranged in the stirring barrel 5; wherein the arrangement of the plurality of stirring discs 2 comprises at least one of the following: the plurality of stirring discs 2 are arranged in a mode of shifting the center of gravity, the plurality of stirring discs 2 are arranged in a mode of shifting the angle, and the grinding disc perforation 4 on the plurality of stirring discs 2 are arranged in a mode of shifting the distance.

Compared with the prior art, the Ai Sa mill stirrer provided by the utility model has the advantage that the technical effect of improving the ore grinding efficiency can be realized by optimizing the arrangement mode of the stirring discs 2.

Specifically, when the plurality of stirring plates 2 are arranged in such a manner that the center of gravity is shifted, the stirring space of the Ai Sa mill stirrer becomes large as a whole, so that the grinding efficiency can be improved.

When a plurality of stirring plates 2 adopt the mode of angle offset to arrange, when the mill perforation 4 of being ground the material through first stirring plate reaches the mill perforation 4 of second stirring plate, still need pass through the angle offset distance, the grinding route of being ground the material under the same stirring space becomes long to make the grinding number of times of being ground the material obtain improving, and then can promote grinding efficiency.

When the millstone perforation 4 on the plurality of stirring discs 2 adopts a distance offset mode to arrange, and when the ground material reaches the millstone perforation 4 of the second stirring disc through the millstone perforation 4 of the first stirring disc, the ground material also needs to pass through the millstone perforation 4 offset distance, and the grinding path of the ground material becomes longer under the same stirring space, so that the grinding times of the ground material is improved, and the grinding efficiency can be improved.

In addition, when a plurality of agitator disks 2 adopt the mode of focus skew to arrange, not only can improve grinding efficiency, the stirring space is bigger, can hold more ground material to the large-scale design of Ai Sa mill agitator still is favorable to. Wherein, the greater the degree of gravity center deviation, the higher the degree of maximization; the smaller the degree of center of gravity shift, the lower the degree of enlargement.

When a plurality of stirring discs 2 are arranged in an angle offset mode, not only can the grinding efficiency be improved, but also the ground material particles can be ground more finely after the grinding times of the ground material are increased, so that the grinding and grain refining requirements can be controlled. If the grinding requirements on the particles are finer, the offset distance between every two stirring discs is larger; if the grinding requires coarser particles, the offset distance between every two stirring discs is smaller.

When the millstone perforations 4 on the plurality of stirring discs 2 are arranged in a distance offset mode, not only can the ore grinding efficiency be improved, but also the more and finer the particles of the ground materials are ground after the grinding times of the ground materials are increased, thereby being beneficial to controlling the ore grinding and grain refining requirements. Wherein, if the grinding is finer, the offset distance of the grinding disc perforation 4 between every two stirring discs is bigger. The coarser the grinding demands on the particles, the smaller the offset distance of the grinding disc perforations 4 between every two stirring discs.

According to different ore properties, different working conditions and different specifications and sizes of the Ai Sa grinding machine, the stirring plates are correspondingly adjusted, namely, the arrangement mode of a plurality of stirring plates 2 is selected. If only an improvement in the grinding efficiency is required, one or more of three cases may be selected. If the working condition requires large-scale design, the stirring disc 2 can be arranged in a mode of shifting the center of gravity; if the working condition requires to control the grain refining degree, the grain refining device can be arranged in a mode of angularly shifting the stirring disc 2, or in a mode of shifting the distance between the grinding disc perforation 4 on the stirring disc 2, or in a mode of combining the angular shifting of the stirring disc 2 and the distance between the grinding disc perforation 4 on the stirring disc 2. If the working condition requires large-scale design and fine grain control, the arrangement of combining the gravity center shifting of the stirring disc 2 and the angle shifting of the stirring disc 2, the arrangement of combining the gravity center shifting of the stirring disc 2 and the distance shifting of the grinding disc perforation 4 on the stirring disc 2 or the arrangement of combining the three modes can be selected.

Alternatively, as in the alternative embodiment shown in fig. 3 and 6, the plurality of agitator disks 2 are each arranged in a regular polygon. The shape of the agitator disk 2 may be selected according to actual needs.

The shape of the stirring disc 2 determines the size of the space formed between the stirring disc 2 and the stirring barrel 5, and the larger the space between the stirring disc 2 and the stirring barrel 5 is, the larger the stirring space is, so that more ground materials can be accommodated.

Alternatively, as in the alternative embodiment shown in fig. 2 and 4, the plurality of agitator disks 2 are each arranged in a non-regular polygon.

Alternatively, in an alternative embodiment of the present application, not shown, one part of the plurality of stirring discs 2 is arranged in a regular polygon, and the other part is arranged in a non-regular polygon.

The number of sides of the regular polygon and the non-regular polygon can be selected according to actual needs.

Alternatively, in an alternative embodiment as shown in fig. 3 and 6, the regular polygon is a regular octagon.

Alternatively, in an alternative embodiment as shown in fig. 2 and 4, the non-regular polygon is a non-regular octagon.

It should be noted that the shape of the non-regular octagon is not limited to the alternative embodiment shown in fig. 2.

The stirring disc with the octagonal shape is adopted, so that the impact capacity and the contact frequency to grinding media and materials can be effectively improved under the condition of high filling rate, input energy is effectively converted into grinding action, and the energy utilization rate and the grinding effect are improved.

Optionally, in an alternative embodiment, not shown, the plurality of stirring discs 2 comprises a plurality of groups of stirring assemblies, the overall center of gravity of each group of stirring assemblies being arranged on the main shaft 1; the number of agitator disks 2 in each set of agitator assemblies is arranged in an irregular number. Like this, ai Sa mill agitator that this application provided can set up the arrangement of a plurality of agitator disks 2 more nimble according to actual need.

Specifically, if the agitator millstones are required to be arranged in an irregular number, it is recommended to select 3 to 8 millstones, and the common center of gravity between 3 millstones and 8 millstones is not required to be on the axis, and the center of gravity can be segmented on the axis. For example, when 8 abrasive discs, the first 3 abrasive discs have their centers of gravity on the axis and the last 5 abrasive discs have their centers of gravity on the axis. Or for example 7 grinding discs, the center of gravity of the first 3 grinding discs is on the shaft, the center of gravity of the last 3 grinding discs is on the shaft, and the middle grinding discs are arranged in an axisymmetric way. The number of the specific stirring discs depends on the requirements of actual working conditions.

Alternatively, when the abrasive disc perforations 4 on the plurality of stirring discs 2 are arranged in a distance offset manner, the offset range of the abrasive disc perforations 4 on the adjacent two stirring discs 2 is not increased by a fixed amount, and the offset range is 5mm to 1000mm. Like this, ai Sa mill agitator that this application provided can set up the arrangement of a plurality of agitator disks 2 more nimble according to actual need.

Alternatively, when the plurality of stirring discs 2 are arranged in such a manner that the center of gravity is shifted, the range of the center of gravity shift of the adjacent two stirring discs 2 is not increased by a fixed amount, and the range of the center of gravity shift is 5mm to 1000mm. Like this, ai Sa mill agitator that this application provided can set up the arrangement of a plurality of agitator disks 2 more nimble according to actual need.

Alternatively, when the plurality of stirring discs 2 are arranged in an angularly offset manner, the range of angular offset of adjacent two stirring discs 2 is not increased by a fixed amount, and the range of increase is 0 to 45 °. Like this, ai Sa mill agitator that this application provided can set up the arrangement of a plurality of agitator disks 2 more nimble according to actual need.

Optionally, the center of gravity of the Ai Sa mill agitator falls on the spindle 1. In this way, smooth operation of the Ai Sa mill agitator can be ensured.

Optionally, in the alternative embodiments shown in fig. 4 and fig. 5 of the present application, the stirring disc 2 is arranged in a non-regular octagon shape, the stirring disc 2 is provided with a mounting hole 201, and the hole center of the mounting hole 201 is arranged eccentrically to the centroid of the non-regular octagon shape; the adjacent two stirring discs 2 are arranged in a mode of shifting the center of gravity. The Ai Sa mill agitator provided by this alternative embodiment is advantageous for large scale designs.

Optionally, in the alternative embodiments shown in fig. 6 and fig. 7 of the present application, the plurality of stirring discs 2 are all arranged in a regular octagon shape, each stirring disc 2 is provided with a mounting hole 201, and the hole center of the mounting hole 201 is overlapped with the centroid of the regular octagon shape; the two adjacent stirring discs 2 are arranged in an angle offset way; the grinding disc perforations 4 on two adjacent stirring discs 2 are arranged in a radial offset manner. The Ai Sa mill agitator provided by this alternative embodiment is advantageous for controlling the degree of grain refinement.

Example 1

As shown in fig. 1, 2, 4 and 5, the novel efficient Ai Sa mill stirrer comprises a main shaft 1, a stirring disc 2, a shaft sleeve 3, a grinding disc perforation 4, a stirring barrel 5 and a classifying disc 6. The stirring barrel 5 horizontally arranged is connected with a main shaft 1,8 stirring discs 2 are positioned in the main shaft 1, the stirring discs 2 are provided with holes 4 perforated with a grinding disc, the shaft sleeve 3 is assembled between the stirring discs 2, and the tail end of the main shaft is provided with a grading disc 6. Be equipped with agitator disk 2 and classifying disk 6 on the main shaft 1, be equipped with axle sleeve 3 between agitator disk 2 and the classifying disk 6, axle sleeve 3 passes through the key to be fixed in the pivot for confirm the interval of agitator disk 2 and classifying disk 6, agitator disk 2 and classifying disk 6 are all fixed in the pivot through the key, carry out synchronous rotation with the pivot. The stirring disk 2 of the stirrer is arranged in an irregular octagonal shape, and the gravity center of the irregular octagonal stirring disk is high and low depending on the degree of enlargement. The degree of eccentricity of the irregular octagonal stirring disk increases as the degree of enlargement increases. The smaller the degree of enlargement, the smaller the degree of eccentricity of the irregular octagonal stirring disk. The recommended value range of the gravity center deviation degree of the stirring disc is 5 mm-1000 mm.

Example 2

As shown in fig. 3, 6 and 7, embodiment 2 differs from embodiment 1 in that a regular octagonal shape arrangement is selected. But the perforation deviation degree of the regular octagonal stirrer millstone is different and the phase difference angle is not increased according to the fixed quantity, the phase difference angle increasing range of the stirrer millstone is 0-45 degrees, and the value range of the perforation deviation degree of the ore grinding is 5-1000 mm. How fine a particular particle is depends on the angle of the disc phase difference and the degree of disc perforation offset. If the grinding is finer, the offset distance between every two stirring discs is larger. If the grinding requires coarser particles, the offset distance between every two stirring discs is smaller.

Example 3

In an embodiment 3 of the present application, not shown, the regular octagonal stirring disk shown in fig. 3 and the non-regular octagonal stirring disk shown in fig. 2 may be mixedly arranged, depending on the overall requirements of the grinding for the enlargement and the grain refinement.

Optionally, the Ai Sa mill stirrer adopts a regular octagonal stirring disc or a non-regular octagonal stirring disc, and the requirement of fine grinding particles or the requirement of large grinding can be selected according to the actual working condition.

Alternatively, ai Sa mill agitator disks have a phase difference angle offset from the center of gravity, although not increasing by a fixed amount, generally requiring the agitator to fall concentrically onto the main shaft.

If the grinding working condition is according to 6000 tons/day of the same grade crude ore processing capacity, the grain size distribution of the grinding grains of the 10000L Ai Sa grinding machine is 15-40 mu m, the original 10000L Ai Sa grinding machine adopts axisymmetric arrangement, and the stirring disk adopts eccentric arrangement in shape, namely, adopts a mode of full central symmetry and asymmetric gravity center. If the gravity center of the grinding disc perforation in each two stirring discs is offset by 110mm and the phase difference angle is offset by 36 degrees, the grinding efficiency of the Ai Sa grinding machine is improved by 1.2 times. When ore pulp is stably introduced into the stirring barrel, grinding materials reach the whole process of the separating device from the leftmost grinding disc, grinding disc perforation of the stirring disc of the original Ai Sa grinding machine is axially symmetrically arranged, and under the actions of impact, extrusion, friction and shearing of the materials with a grinding medium and a stirrer, the grinding materials axially reach the separating device along the grinding disc perforation. By adopting the utility model, as the grinding disc perforation offset distance and the phase difference angle offset are arranged between the stirring discs, the ground materials can reach the second grinding disc only after passing through the grinding disc perforation offset distance and the phase difference angle offset distance between the first stirring disc and the grinding disc perforation of the second stirring disc, and when the ground materials reach the product separator after passing through eight grinding discs, the grinding process of the ground materials in the same stirring space is improved compared with the grinding process of the original stirrer, and the grinding efficiency is improved. When the perforation of the grinding disc between every two stirring discs deviates by 110mm and the phase difference angle deviates by 36 degrees, the grinding path is 1.2 times longer than the original path, and the grinding efficiency is improved by corresponding times under the condition, so that the grinding and grain refining requirements can be better met.

When the grinding working condition needs 6000 tons/day of the same grade crude ore treatment capacity, according to 10000L Ai Sa grinding machine 240t/h treatment capacity, 8 stirring discs are required to be assembled and the working condition is operated at full power every day, and the requirement of the working condition is not met yet. According to the utility model, 6000 tons/day ore treatment capacity can be treated only by using a 5000L Ai Sa mill under the working condition, the ore grinding efficiency of the 5000L Ai Sa mill is required to be improved to 1.7 times according to the 150t/h treatment capacity of the 5000L Ai Sa mill, and only two grinding discs are required to be respectively offset to 480mm towards two sides, so that the whole stirring space is enlarged by 1.7 times, and the ore grinding efficiency of the whole Ai Sa mill is improved by 1.7 times according to the proportion of 1:1.7. Meanwhile, the 5000L Ai Sa mill can finish the ore treatment capacity of the original 10000L Ai Sa mill, so that the material acquisition cost is saved, and the mechanical structure is simplified.

According to different ore properties, different working conditions and different specifications and sizes of the Ai Sa mill, the stirring disk is correspondingly adjusted. Most importantly, if the working condition requires the maximization of the working condition and a certain particle size distribution, because the requirements of different technological conditions on the ore processing capacity and the ore size are different, the grinding frequency and the deviation degree, such as three, four or eight stirring discs, can be controlled by mixing and arranging different numbers of regular octagons or non-regular octagons of stirring discs 2 according to the working condition, and the deviation degree of the center of gravity of the stirring discs along the radial direction is different, so that the grinding efficiency is improved, the deviation degree of the perforation of the grinding disc of the stirring disc along the radial direction is different, and the grain refining degree is controlled.

The Ai Sa mill agitator of the prior art suffers from the following disadvantages:

1. the agitator, which is the key working part of the Ai Sa mill, is responsible for mixing the grinding media uniformly with the slurry and providing the energy required for grinding. Most of the stirrers commonly used at present are rod pin type, spiral type, impeller type or stirring discs with regular holes, and the shape, size, blade angle and the like of the stirrers are unreasonable in design, so that input energy cannot be effectively converted into grinding action, and the energy utilization rate and grinding effect are affected.

2. With the continuous development of industry, the requirements for the size increase of the mill are also increasing. At present, the size of the Ai Sa grinder is increased, and each part is enlarged according to a certain size. The pure size amplification mode can bring a series of problems of large equipment occupation area, high purchase cost, inconvenient maintenance, high cost, high energy consumption and the like, and unnecessary manpower, material resources and financial costs are increased for enterprises.

3. The grinding particles are further processed into smaller particles, and at the present stage Ai Sa grinding particles are processed into fine particles, so that more energy and operation time are required to be consumed to crush materials, or the methods of increasing the quality of grinding media, increasing the rotating speed and the like are required to apply larger acting force to grind the materials, and the problems of increased equipment operation cost, serious equipment abrasion and the like are caused.

The Ai Sa mill stirrer provided by the utility model has the beneficial technical effects that the stirrer at least comprises;

1. the stirring disc with the octagonal shape is adopted, so that the impact capacity and the contact frequency to grinding media and materials can be effectively improved under the condition of high filling rate, input energy is effectively converted into grinding action, and the energy utilization rate and the grinding effect are improved.

2. Through adopting regular octagon agitator disk or non-regular octagon agitator disk, can select the selection according to the requirement of actual operating mode to grinding granule grain or the requirement of grinding maximization, make the agitator disk can match the operating mode demand better, increased the flexibility of grinding selection, improved the effect of grinding the material.

3. The large-scale grinding working condition is realized by adjusting the offset distance of the stirring disk, the operation effect of a plurality of devices can be achieved by using one large-scale Ai Sa grinding machine, the production efficiency and the grinding effect of the Ai Sa grinding machine are effectively improved, the energy consumption of Ai Samo machines and the life cycle cost of the devices are reduced, and the economic and social benefits are remarkable.

4. The grinding working condition particles are fine-grained by adjusting the offset distance of the perforation of the grinding disc and the phase difference angle of the stirring disc, grinding media and slurry are well stirred uniformly, the grinding effect and the particle size control of the grinding particles are effectively improved, the grinding device can be suitable for materials with different ore types and particle sizes, and the operation is simple and convenient.

The Ai Sa mill stirrer provided by the utility model can effectively improve the impact capability on grinding media and materials and improve the collision energy. Meanwhile, the stirring disc can adjust the gravity center offset degree and the phase difference angle according to the requirements of large grinding and grain refining, so that the effect of grinding materials is effectively improved, the stirrer is enabled to grind more fully, the grinding efficiency of the Ai Sa grinding machine can be remarkably improved, and the energy consumption of the Ai Sa grinding machine is reduced.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims (10)

1. An pizza mill agitator, comprising:

a main shaft (1);

the stirring device comprises a main shaft (1), a plurality of stirring discs (2), a grinding disc perforation (4) and a stirring disc, wherein the stirring discs (2) are arranged on the main shaft (1) at intervals along the axial direction of the main shaft (1);

a classifying disc (6), wherein the classifying disc (6) is arranged at the tail end of the main shaft (1);

a plurality of shaft sleeves (3), one shaft sleeve (3) is arranged between two adjacent stirring discs (2), and one shaft sleeve (3) is arranged between the classifying disc (6) and one stirring disc (2) adjacent to the classifying disc;

the main shaft (1), the plurality of stirring discs (2), the classifying disc (6) and the plurality of shaft sleeves (3) are all arranged in the stirring barrel (5);

wherein the arrangement of the plurality of stirring discs (2) comprises at least one of the following:

the stirring discs (2) are arranged in a mode of gravity center deviation, the stirring discs (2) are arranged in a mode of angle deviation, and the grinding disc perforation (4) on the stirring discs (2) are arranged in a mode of distance deviation.

2. The Ai Sa mill agitator of claim 1,

the stirring discs (2) are arranged in a regular polygon; or alternatively

The stirring discs (2) are arranged in a non-regular polygon; or alternatively

One part of the stirring discs (2) is arranged in a regular polygon, and the other part is arranged in a non-regular polygon.

3. The Ai Sa mill agitator of claim 2,

the regular polygon is a regular octagon; the non-regular polygon is a non-regular octagon.

4. The Ai Sa mill agitator of claim 1,

the stirring discs (2) comprise a plurality of groups of stirring assemblies, and the whole gravity center of each group of stirring assemblies is arranged on the main shaft (1); the number of stirring discs (2) in each group of stirring assemblies is arranged in an irregular number.

5. The Ai Sa mill agitator of claim 1,

when the millstone perforation holes (4) on the plurality of stirring plates (2) are arranged in a distance offset mode, the offset ranges of the millstone perforation holes (4) on the two adjacent stirring plates (2) are not increased by a fixed number, and the offset ranges are 5 mm-1000 mm.

6. The Ai Sa mill agitator of claim 1,

when the stirring plates (2) are arranged in a gravity center shifting mode, the gravity center shifting ranges of two adjacent stirring plates (2) are not increased in an increasing mode according to the fixed quantity, and the gravity center shifting ranges are 5 mm-1000 mm.

7. The Ai Sa mill agitator of claim 1,

when the stirring discs (2) are arranged in an angle offset mode, the angle offset range of two adjacent stirring discs (2) is not increased by a fixed amount, and the increasing range is 0-45 degrees.

8. The Ai Sa mill agitator according to any one of claims 1 to 7,

the gravity center of the Ai Sa mill stirrer falls on the main shaft (1).

9. The Ai Sa mill stirrer according to claim 1, wherein the stirring plate (2) is arranged in a non-regular octagon shape, the stirring plate (2) is provided with a mounting hole (201), and the hole center of the mounting hole (201) is arranged eccentrically to the centroid of the non-regular octagon shape; the two adjacent stirring discs (2) are arranged in a mode of gravity center deviation.

10. The Ai Sa mill stirrer according to claim 1, wherein the stirring discs (2) are all arranged in a regular octagon shape, each stirring disc (2) is provided with a mounting hole (201), and the hole center of each mounting hole (201) is arranged in a manner of overlapping with the centroid of the regular octagon shape; the two adjacent stirring discs (2) are arranged in an angle offset manner; the grinding disc perforations (4) on two adjacent stirring discs (2) are arranged in a radial offset manner.