CN202621239U - Classified grinding bead mill - Google Patents

Abstract

The utility model discloses a classified grinding bead mill which comprises a rotor pole and a stator barrel, wherein the rotor pole is positioned in the stator barrel; a connecting shaft at the upper end of the rotor pole penetrates through the top surface of the stator barrel and is externally connected with a motor; a plurality of ring-shaped sieving devices with different mesh numbers are arranged in a grinding cavity body; the mesh number of the ring-shaped sieving device at the lower part in the grinding cavity body is greater than that of the ring-shaped sieving device at the upper part in the grinding cavity body; the ring-shaped sieving devices divide the grinding cavity body into a plurality of sub-grinding cavities from top to bottom; a feed opening is communicated with a sub-grinding cavity at the top; a discharge opening is formed in the bottom surface of the stator barrel; a bottom sieving device is arranged above the discharge opening; materials pass through a plurality of sub-grinding cavities to be ground from top to bottom in sequence, so that the materials of different particle sizes are positioned in different sub-grinding cavities to be ground, which is beneficial for improving the grinding efficiency; and when the materials can be discharged from each sub-grinding cavity, the materials of multiple particle sizes can be obtained through grinding.

Description

Classified Grinding Bead Mill

technical field

The utility model belongs to the field of grinding equipment, in particular to a bead mill capable of performing graded grinding and grinding out multi-level materials.

Background technique

The bead mill is a kind of equipment used for grinding, mainly including the rotor and the stator. The gap between the rotor and the stator constitutes the grinding chamber, and the material is fed into the grinding chamber for grinding. The main grinding principle of the bead mill is through the The grinding rods on the stator and the steel balls poured into the grinding chamber are realized. When the rotor rotates, the grinding rods on the rotor are driven to rotate. Under the joint action of the grinding rods and steel balls, the materials are simultaneously mixed, dispersed, kneaded, Physical effects such as rolling, friction and shearing, but the bead mill in the prior art is mainly composed of a rotor cylinder and a stator column located in the rotor cylinder, and the material is added between the inner wall of the rotor cylinder and the outer wall of the stator column. Grinding, a screening device is installed at the discharge port, and those whose fineness reaches the standard will be discharged through the screening device and the discharge port, and those whose fineness does not meet the standard will continue to grind, so this type of grinder can only finally grind out a single particle size range of materials.

Utility model content

In order to overcome the above defects, the utility model provides a graded grinding bead mill, which can improve the grinding efficiency, and can also grind materials with multiple particle size ranges, and has a simple structure and is easy to implement.

The technical scheme that the utility model adopts in order to solve its technical problem is:

A graded grinding bead mill, comprising a stator and a rotor, a grinding cavity is formed between the stator and the rotor, a plurality of grinding rods are arranged on the stator and the rotor, and the plurality of grinding rods are located in the grinding cavity, and the rotor is The rotor column, the stator is a stator cylinder, the stator cylinder has an opposite top surface and bottom surface and a side wall connecting the top surface and the bottom surface, the rotor column is located in the stator cylinder, and the upper end of the rotor column is connected to There is a connecting shaft, and the connecting shaft passes through the top surface of the stator cylinder and connects to the motor externally. There are several ring-shaped screening devices with different mesh numbers in the grinding chamber, and the ring-shaped screening devices are arranged in an up-and-down Arranged at intervals, and the mesh number of the annular screening device located below is larger than that of the annular screening device located above, the outer ring of the annular screening device is sealed and fixed to the stator cylinder, the There is a dynamic seal between the inner ring of the annular screening device and the outer wall of the rotor column. Several annular screening devices divide the grinding chamber into several sub-grinding chambers from top to bottom. The top of the stator cylinder A feed port is opened on the surface, and the feed port communicates with the uppermost sub-grinding chamber. A discharge port is provided on the bottom surface of the stator cylinder, and a bottom screening device is provided above the discharge port.

The further technical scheme that the utility model adopts is:

The side wall of the stator barrel corresponding to each of the sub-grinding chambers is provided with a discharge port, each discharge port communicates with its corresponding sub-grinding chamber, and each discharge port is provided with a sealing cover.

The bottom surface, the top surface and the side wall of the stator cylinder and the rotor column all have hollow interlayers, and cooling water circulates in the interlayers.

The beneficial effects of the utility model are: the graded grinding bead mill of the utility model includes a sub-column and a stator cylinder, the rotor column is located in the stator cylinder, the upper end of the rotor column is connected with a connecting shaft, and the connecting shaft passes through the top surface of the stator cylinder And an external motor, there are several ring-shaped screening devices with different meshes in the grinding chamber, the mesh number of the ring-shaped screening device at the bottom is larger than that of the ring-shaped screening device at the top, and several ring-shaped screening devices The grinding chamber is divided into several sub-grinding chambers from top to bottom. The feeding port is connected to the uppermost sub-grinding chamber, and the bottom surface of the stator cylinder is provided with a discharge port, so the material passes through multiple sub-grinding chambers from top to bottom. Cavity grinding, so that materials with different particle size ranges are ground in different sub-grinding chambers, which is beneficial to improve the grinding efficiency; when each sub-grinding chamber can discharge materials, it can grind materials with multiple particle size ranges.

Description of drawings

Fig. 1 is the sectional structure schematic diagram of the utility model embodiment 1;

Fig. 2 is a schematic cross-sectional structure diagram of Embodiment 2 of the present utility model.

Detailed ways

Embodiment 1: a kind of graded grinding bead mill, comprising a stator and a rotor, a grinding cavity is formed between the stator and the rotor, a plurality of grinding rods are arranged on the stator and the rotor, and a plurality of grinding rods are located in the grinding cavity, The rotor is a rotor column 1, the stator is a stator cylinder 2, the stator cylinder has opposite top and bottom surfaces and a side wall connecting the top and bottom surfaces, the rotor column is located in the stator cylinder, The upper end of the rotor column is connected with a connecting shaft 3, and the connecting shaft passes through the top surface of the stator cylinder and is connected with an external motor. There are several annular screening devices 4 with different meshes in the grinding chamber, and several rings The circular screening devices are arranged at intervals up and down, and the mesh number of the annular screening device located below is larger than that of the annular screening device located above, and the outer ring of the annular screening device is sealed and fixed on the The stator cylinder, the inner ring of the annular screening device and the outer wall of the rotor column are dynamically sealed, and several annular screening devices divide the grinding chamber into several sub-grinding chambers from top to bottom , the top surface of the stator cylinder is provided with a feed inlet 5, the feed inlet communicates with the uppermost sub-grinding chamber, and the bottom surface of the stator cylinder is provided with a discharge outlet 6, the discharge A bottom screening device 7 is provided above the mouth.

The bottom surface, the top surface and the side wall of the stator cylinder and the rotor column all have hollow interlayers, and cooling water circulates in the interlayers.

It can be seen from the above structure that the material is ground through multiple sub-grinding chambers sequentially from top to bottom, so that materials with different particle size ranges are ground in different sub-grinding chambers, which is conducive to improving the grinding efficiency.

Embodiment 2: The structure of the graded grinding bead mill of this embodiment is roughly the same as the structure of the graded grinding bead mill of Embodiment 1, the difference is that in this embodiment, the stator corresponding to each of the sub-grinding chambers Discharging ports 8 are provided on the side walls of the cylinder, and each discharging port communicates with its corresponding sub-grinding chamber, and each discharging port is provided with a sealing cover 9 .

It can be seen from the above structure that when the sealing cover seals the discharge interface, the efficiency of the classified grinding bead mill in this embodiment is the same as that of the classified grinding bead mill in embodiment 1. When the sealing cover is removed, and the discharge interface is connected to the receiving device, that is, the classified grinding bead mill of this embodiment can grind materials with different particle size ranges to meet different processing requirements.

Claims (3)

1. A graded grinding bead mill, comprising a stator and a rotor, a grinding chamber is formed between the stator and the rotor, and some grinding rods are arranged on the stator and the rotor, and some grinding rods are located in the grinding chamber, its features In that: the rotor is a rotor column (1), the stator is a stator cylinder (2), the stator cylinder has opposite top and bottom surfaces and a side wall connecting the top and bottom surfaces, and the rotor column is located Inside the stator cylinder, a connecting shaft (3) is connected to the upper end of the rotor column. The connecting shaft passes through the top surface of the stator cylinder and connects to the motor externally. There are several annular rings with different meshes in the grinding chamber. A screening device (4), and several annular screening devices are arranged at intervals up and down, and the mesh number of the lower annular screening device is larger than that of the upper annular screening device. The outer ring of the ring-shaped screening device is sealed and fixed on the stator cylinder, the inner ring of the ring-shaped screening device is dynamically sealed with the outer wall of the rotor column, and several ring-shaped screening devices seal the grinding chamber It is divided into several sub-grinding chambers from top to bottom, and a feeding port (5) is opened on the top surface of the stator cylinder, and the feeding port communicates with the uppermost sub-grinding chamber, and the bottom surface of the stator cylinder is A discharge port (6) is opened on the top, and a bottom screening device (7) is provided above the discharge port. 2. The classified grinding bead mill according to claim 1, characterized in that: the side wall of the stator cylinder corresponding to each of the sub-grinding chambers is provided with a discharge interface (8), and each discharge The interfaces are all communicated with their corresponding sub-grinding chambers, and each discharge interface is provided with a sealing cover (9). 3. The classified grinding bead mill as claimed in claim 1 or 2, characterized in that: the bottom surface, top surface and side wall of the stator cylinder and the rotor column all have a hollow interlayer, and cooling fluid circulates in the interlayer. water.

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