Cylinder structure of large modular mill

Abstract

The invention relates to the field of mills, and discloses a cylinder structure of a large modular mill. The cylinder structure comprises a plurality of cylinders which are connected with one another,the two ends of each cylinder are connected with end flanges correspondingly, the outer surface of each cylinder is sleeved with at least one annular flange, and one side of each cylinder is connected with an excitation device mounting base through the at least one annular flange; the other side of each cylinder is connected with a balance weight through the at least one annular flange, and the balance weights are used for adjusting the weight of the two sides of the cylinders; and spring bases are arranged at the lower ends of the two sides of each cylinder correspondingly. According to thecylinder structure of the large modular mill, through horizontal arrangement of a vibratory mill, dry-process and wet-process ore grinding can be achieved, the excitation device is arranged on one side of each cylinder, the balance weight is arranged on the other side of each cylinder, the cylinder structure is provided with the spring bases and supported by springs, the large scale of the mill iswell completed, machining, manufacturing and transporting are convenient, modular design of the mill is achieved, and the cylinder structure has the excellent characteristics of high ball loading rate, low energy consumption and universality for dry milling and wet milling and the like.

Description

technical field [0001] The invention relates to the field of mills, in particular to a cylinder structure of a large modular mill. Background technique [0002] The traditional ball mill in the prior art is a rotating cylinder. The rotating cylinder brings the materials and media (such as steel balls) to a certain height and then discharges downward. During the discharge process, the impact grinding between the medium and the materials is completed. During the impact process, along with the speed difference between the grinding media, there will be a rolling speed difference and a grinding speed difference between the grinding media, so that the material will be finely ground. The traditional ball mill is a grinding equipment mainly based on impact grinding, supplemented by rolling and grinding grinding. The speed at which the material and medium rotate against the cylinder is the critical speed of the traditional ball mill. When the rotational speed of the rotating cylinder...

AI Technical Summary

Problems solved by technology

The commonly used fine grinding or ultrafine grinding equipment (such as vertical spiral stirring mill or horizontal spiral stirring mill) is only suitable for wet grinding, not dry grinding, and fine grinding or ultrafine grinding The method of increasing the flow velocity of the medium, and using this method of increasing the energy input density to achieve grinding, although this grinding method can achieve fine grinding or ultrafine grinding, but when the flow velocity of the medium increases to a certain extent, both When the linear velocity of the medium is high to a certain extent, there is a plastic deformation of the medium due to the strong extrusion between the media. This plastic deformation will eventually be converted into heat, the energy consumption is too large, and the efficiency of converting the input energy into grinding energy is too high. Low, which also results in high mineral processing costs in the field of fine grinding or ultra-fine grinding wet grinding

[0004] In the existing known technology, there is a kind of equipment used for dry grinding and fine grinding, single-tube vibrating mill or multi-tube vibrating mill. Most of this type of vibrating mill adopts the center drive mode, and the cylinder moves circularly around the center. , this kind of movement mode has the violent collision of the steel ball medium, which leads to excessive energy consumption. At the same time, due to the limitation of the structure and the volume of the cylinder, it is impossible to achieve large-scale industrial production. This kind of vibratory mill can only realize small batches, intermittent The processing of ultra-fine powder also fails to meet the needs of large-scale industrial production, high ball filling rate, low energy consumption, and the mass production of ultra-fine mills that are common to both dry and wet grinding.

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