Side vibration mill adopting variable-pitch non-closed-coil springs and media in mixed density

Abstract

The invention discloses a single-drum vibration mill adopting variable-pitch non-closed-coil springs and media in the mixed density. A main vibration system comprises a vibration motor which is controlled by a frequency converter and used as a vibration exciting source and a grinding drum fixed to the vibration motor; the vibration motor, the grinding drum and an upper mass plate form an upper mass; one end of a main vibration spring group is connected with the upper mass; the other end of the main vibration spring group is connected with a base; and the main vibration spring group comprises the multiple variable-pitch non-closed-coil helical springs, and each spring is formed by coiling one steel wire. The vibration mill has the positive, obvious and unique effects and has the characteristics of being capable of realizing ultrafine particle refining, realizing de-agglomeration and narrowing the powder product distributing zone, low in energy consumption, high in grinding efficiency, high in energy utilization rate, capable of realizing effective energy storage, saving energy, running stably and remarkably reducing the noise, good in vibration isolating effect and the like.

Description

technical field [0001] The invention relates to a grinding equipment for vibratory preparation of superfine powder of materials, which is a single-cylinder vibratory mill with variable pitch non-coil springs and medium with a mixed density ratio, belonging to vibration utilization and powder engineering Interdisciplinary science and technology. Background technique [0002] Vibrating mill is a vibrating mechanical equipment that uses the principle of vibration to complete the ultrafine grinding operation of materials. In the existing ultrafine powder preparation technology, vibrating mill and other preparation methods include gas phase synthesis, liquid phase synthesis, jet milling, Compared with the drum milling method, it has the advantages of high mechanical activity of the material, convenient purification, low cost, simple structure, and high efficiency. The existing vibrating mill support spring generally adopts a linear equal-pitch helical spring; its medium generally...

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Problems solved by technology

[0009] The invention provides a single-cylinder vibration mill with variable pitch non-coil springs and mixed density medium, which has a side-mounted structure in which the vibration exciter, that is, the vibration motor is located on the left or right side of the grinding cylinder, and technical features. The main vibration spring is of variable stiffness. Variable pitch non-coil spring; in order to increase the energy of impact, extrusion, shearing and collision of the grinding media balls in the cylinder during relative motion, the optimal setting of the mixed density medium ratio is implemented, which is different from the existing widely used ordinary single cylinder vibration Compared with the mill system, it has the characteristics of high efficiency and low noise, and aims to effectively solve the technical bottleneck problems of high noise and low efficiency that have been pending in the existing vibratory mill.

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