Spherical granules forming device

Abstract

The invention relates to a spherical particle forming device used for a fusing material, which comprises a pressure device, a nozzle and a pipe connecting the pressure device and the nozzle. The fusing material is pressurized by the pressure device, passes through the pipe and is ejected from the nozzle; the ejection surface of the nozzle faces upward, the middle of the ejection surface heaves, the surrounding of the ejection surface is thicker than the central part gradually or the ejection surface is provided with ejection holes comprising two parts, outer holes and inner holes, the diameters of the outer holes are equivalent, the diameters of the inner holes are equivalent, the diameters of the inner holes are larger than that of the outer holes and the depths of the inner holes at the central part of the ejection surface change gradually to be larger than that of the surrounding inner holes. The material ejected from the central part of the ejection surface has relatively small resistance, thus can be ejected comparatively far away, the material ejected from the surrounding of the ejection surface suffers relatively large resistance, thus can be ejected nearby, therefore, spherical particles ejected by ejection holes of different levels do not collide or bind. The device has simple structure, relatively low cost, excellent forming effect and high production efficiency.

Description

technical field [0001] The invention relates to a device for forming spherical particles, especially a device for solidifying molten materials into spherical particles. Background technique [0002] The molding process of spherical particles generally uses nozzles to spray molten materials, and the materials form a thin line after passing through the nozzle holes of the nozzle, which breaks and shrinks into single spherical particles during the free fall process under the action of gravity, and is also cooled during the falling process. During the solidification process, it becomes solid spherical particles before falling to the ground. [0003] In order to make the particle molding controllable, there are some technical means to improve this, such as the periodic back and forth movement of the nozzle in the direction of material ejection, or the periodic back and forth of the nozzle in the direction perpendicular to the material ejection Movement, or the rotation of the no...

AI Technical Summary

Problems solved by technology

[0004] However, all of the above methods require additional improvements to the molding device, resulting in higher production costs and more complicated devices.

Moreover, due to the existence of additional force, the velocity of spherical particles is not uniform when they are ejected, so collisions between spherical particles are easy to occur, and the collision of particles that are not completely solidified will affect the uniformity of the particle forming diameter, and even more Particles stick together, producing a certain amount of waste

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