阅读说明：本技术 立式磨矿机 (Vertical ore mill ) 是由 李细国 张春胜 黄永祥 于 2019-12-19 设计创作，主要内容包括：本发明公开了一种立式磨矿机,包括筒体、由电机传动的搅龙和固定电机与搅龙的支撑架,所述筒体内设有至少两个相互并列排列的搅拌腔；所述搅拌腔之间相互连通；所述搅龙分别置于搅拌腔内且搅龙分别配置相应的电机；所述搅龙相互之间的空隙是5-90cm。本发明的立式磨矿机启动速度快,工作效率高,研磨效果好,能耗小。(The invention discloses a vertical ore mill, which comprises a cylinder, an auger driven by a motor, and a support frame for fixing the motor and the auger, wherein at least two stirring cavities which are arranged in parallel are arranged in the cylinder; the stirring cavities are communicated with each other; the screw conveyors are respectively arranged in the stirring cavities and are respectively provided with corresponding motors; the mutual gap of the screw feeders is 5-90 cm. The vertical ore mill has the advantages of high starting speed, high working efficiency, good grinding effect and low energy consumption.)

1. The utility model provides a vertical ore mill, includes barrel (2), by support frame (5) of motor drive's screw feeder (3) and fixed motor and screw feeder (3), its characterized in that: at least two stirring cavities (4) which are arranged in parallel are arranged in the cylinder body (2); the stirring cavities (4) are communicated with each other; the screw feeders (3) are respectively arranged in the stirring cavity (4), and the screw feeders (3) are respectively provided with corresponding motors; the gap between the screw feeders (3) is 5-90 cm.

2. A vertical mill according to claim 1, wherein: the inner wall of the cylinder body is provided with a protective layer (1); the protective layers are fixedly connected with each other through rods or plates to form a unit lattice in which the ball medium stays.

3. A vertical mill according to claim 2, wherein: the shape of the unit cell is square or prismatic or circular or oval.

4. A vertical mill according to claim 1, wherein: the number of the stirring cavities (4) in the cylinder body (2) is 2-7.

5. A vertical mill according to claim 1, wherein: the number of the stirring cavities (4) in the cylinder body (2) is 3-5.

6. A vertical mill according to claim 1 or 2, wherein: the stirring cavities (4) are arranged in a finished product shape like Chinese character 'ji'.

7. A vertical mill according to claim 1 or 2, wherein: the stirring cavities (4) are arranged in a straight line.

8. A vertical mill according to claim 7, wherein: the feeding port of the barrel (2) which is arranged into the linear stirring cavity (4) is arranged at the lower part of the front end of the barrel (2), and the discharging port is arranged at the upper part of the rear end of the barrel (2).

9. A vertical mill according to claim 1 or 2, wherein: the mutual gap of the screw conveyors (3) is 10-60cm, and the preferable range of the mutual gap of the screw conveyors (3) is 15-35 cm.

10. A vertical mill according to claim 4 or 5, wherein: one or two augers are arranged in the cylinder body (2) and have opposite rotation directions.

Technical Field

The invention relates to mining equipment, in particular to a vertical ore mill.

Background

The cylinder of the vertical ore mill used at present is internally provided with a blade type stirring device and ball media, such as ceramic balls, glass balls, steel balls and the like, and the stirring device rotates to rotate the ball media, so that impact and grinding effects are generated to grind materials.

The existing vertical ore mill adopts a single cylinder, and because of the structural characteristics of the single cylinder vertical ore mill, a motor with the power of more than 400 kilowatts is generally required to drive an auger to rotate, and the single auger is used for stirring a ball medium to move, so that the structure is simple. However, the energy consumption is large and the efficiency is low, and especially, when the vertical ore mill is started, all the ball media in the cylinder can completely enter a motion state after the auger rotates for a period of time under the pressure action of the ball media, so the starting speed is low, the working efficiency is low, the energy consumption is larger, and the large-scale and large-scale popularization and application of the vertical ore mill are limited.

Secondly, the moving speed of the ball medium is not uniform in the moving process of the ball medium, so that the grinding efficiency is low and the energy consumption is high.

Thirdly, when the height of the mill is increased, namely the volume of the cylinder body is increased, the pressure between grinding ball media is also increased, the abrasion to the inner wall of the cylinder body is increased, and the service life is short and the use cost is high.

Disclosure of Invention

The invention aims to provide a vertical ore mill which is convenient to use, low in energy consumption, high in efficiency, long in service life and low in use cost.

In order to solve the technical problem, the vertical ore mill comprises a cylinder, an auger driven by a motor, and a support frame for fixing the motor and the auger, wherein at least two stirring cavities which are arranged in parallel are arranged in the cylinder; the stirring cavities are communicated with each other; the screw conveyors are respectively arranged in the stirring cavities and are respectively provided with corresponding motors; the mutual gap of the screw feeders is 5-90 cm.

The inner wall of the cylinder body is provided with a protective layer; the protective layers are fixedly connected with each other through rods or plates to form a unit lattice in which the ball medium stays.

The shape of the unit cell is square or prismatic or circular or oval.

The number of the stirring cavities in the cylinder body is 2-7.

The number of the stirring cavities in the cylinder body is 3-5.

The stirring cavities are arranged in a finished product shape or a plum blossom shape.

The stirring cavities are arranged in a straight line.

The feeding port of the barrel arranged in the linear stirring cavity is arranged at the lower part of the front end of the barrel, and the discharging port is arranged at the upper part of the rear end of the barrel.

The gap between the augers is 10-60 cm.

The preferred range of the gap between the augers is 15-35 cm.

One or two screw feeders in the cylinder body rotate in opposite directions.

By adopting the structure of the invention, at least two stirring cavities which are arranged in parallel are arranged in the cylinder body, the stirring cavities are communicated with each other, the augers are respectively arranged in the stirring cavities and are respectively provided with corresponding motors, the gap between the augers is 5-90cm, the two stirring cavities which are arranged in parallel are communicated with each other, the volume of the cylinder body is increased, the height of the cylinder body is kept, the pressure between grinding ball media is kept unchanged, the friction surfaces of the grinding media and materials are increased, the grinding efficiency is improved, the height of the cylinder body is kept, the energy is saved, and the use is convenient. Secondly, because be equipped with two at least stirring chambeies of arranging side by side each other, two at least motors drive the screw feeder rotation respectively, increased a plurality of centrifugal force, cutting force and frictional force, the ore grinding is faster, thinner, and the speed that all ball medium got into motion state completely in the barrel is fast, therefore the start-up speed is fast, and work efficiency is high, and the energy consumption is little. And thirdly, the at least two motors respectively drive the screw conveyer to rotate, and in the moving process of the ball medium, the moving speed of the ball medium is uniform, the grinding efficiency is high, and the energy consumption is low.

Through tests, the grinder which is respectively driven by two or more motors to rotate by the auger has higher efficiency and lower energy consumption than a single-motor ball grinder, and the measured data are as follows:

model type	Total power KW	Grinding quantity of ton/day
			Existing large single-motor ball mill	400	500
Two-motor linear mill	90	300
			Three-motor linear grinding machine	165	600
Triangular grinding machine with three motors	220	800
			Four-motor linear mill	220	800
Quincunx grinder with five motors	400	1100

The upper table shows that when the total power of the motors is equal, the number of the motors is increased, and compared with the grinding efficiency of one motor, the grinding efficiency is high, the energy consumption is low, and the large-scale and large-scale popularization and application of the vertical ore mill are facilitated.

And because the inner wall of the cylinder body is provided with the protective layer, the protective layer is mutually fixedly connected by the rods or the plates to form a cell where the ball medium stays, and the ball medium stays in the cell and is matched with the cell to form the protective layer. Ball medium is at the motion in-process, and the ball medium that the unit is extra can't contact with the barrel inner wall, the effectual barrel that has protected, and ball medium contact in the ball medium that the unit is extra when the ball medium motion simultaneously in the unit check, the resistance of ball medium motion is little, and the efficiency of grinding the material is higher.

Because the feeding port of the cylinder body arranged in the linear stirring cavity is arranged at the lower part of the front end of the cylinder body, and the discharging port is arranged at the upper part of the rear end of the cylinder body, the moving path of the material is lengthened, the grinding effect is better, and the grinding efficiency is higher.

Because the rotation direction that has one or two screw feeders in the barrel is opposite, prevented effectively that the ball medium from being detained in the barrel, the velocity of motion of ball medium is even, and grinding effect is better, and grinding efficiency is higher.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a schematic structural view of the second embodiment;

FIG. 4 is a schematic diagram of a third structure of the embodiment;

FIG. 5 is a schematic structural view of the fourth embodiment;

FIG. 6 is a schematic diagram of the fifth embodiment.

Detailed Description

The invention is described in detail below with reference to the following figures and detailed description: