Automatic spheroidization device for producing spherical graphite

Abstract

The invention discloses an automatic spheroidization device for producing spherical graphite, which mainly comprises an automatic material supply device, a powder system, a spheroidization system, a dust recovery system and a material collection system, wherein materials enter the powder system from the automatic material supply device and after being processed, and enter the spheroidization system and the material collection system in turn; the whole process is carried out in a sealed pipe in sequence; a vacuum exhaust fan is used for providing power; and in a production process, the efficiency is high and no pollution is generated. The device can realize the fully-automatic control in a whole process from material supply to powder making to spheroidization to separation to product recovery to dust recovery; the prepared graphite powder is spherical material; the surface of the graphite powder has openings; the values, which are preset before production, of the tap density, specific surface area and size distribution can be achieved; the product quality is stable; the yield can be improved by more than three times; over 40 percent of energy can be saved; over 60 percent of cost can be saved; and dust leakage and high noise are prevented.

Description

technical field [0001] The invention relates to a spheroidizing device for producing spherical graphite, in particular to an automatic spheroidizing device specially used for producing spherical graphite. Background technique [0002] With the development of modern science and technology and industry, graphite has become one of the important energy sources in the high-tech field and plays an important role in the national economy. As a special-purpose spherical graphite, its demand is increasing. However, because the production technology of spherical graphite is very difficult, the technical conditions in the preparation are very high, and there is no relatively mature production equipment at present, which seriously affects the supply and demand of the market, and restricts the progress of science and technology and the development of social economy. In recent years, some production enterprises have transformed the equipment for producing ordinary graphite powder in order ...

AI Technical Summary

Problems solved by technology

The mechanically pulverized graphite powder has irregular particles, flakes, triangles, and spherical shapes mixed together; in terms of particle size distribution, the particle size distribution of the product is different due to the technical factors of the equipment. It is also very difficult to sieve, for this reason, the obtained product can only be used as a general material

Its existing equipment can not make the specific defects and technical problems of spherical graphite, which are shown in the following aspects: one is that the design of the crushing chamber or spheroidizing chamber of the equipment is unreasonable, and the feed port and discharge port of the general equipment are both Set on the crushing chamber, when the material enters the crushing chamber, it will be crushed directly in the crushing chamber, and it will be discharged from the discharge port in a short time, only forming a mechanical crushing process, lacking the process of physical collision and agglomeration; second, the design of the grinding disc and cutter Unreasonable, the general equipment adopts the working principle of the "crusher" grinding disc, and the cutter is set on the upper plane of the grinding disc. When the material enters from the crushing chamber, it directly falls into the upper plane of the grinding disc, and the grinding disc can only make the material When crushing or moving above the grinding disc, the knives on the grinding disc can only perform local shearing; third, the general equipment adopts a higher rotor speed, and it is generally believed that the higher the speed, the better the crushing effect, but it is not So; the fourth is that the production equipment lacks systematicity, can not operate in a continuous cycle, and it is difficult to control the technical parameters; the fifth is that the ratio of spherical particles produced is relatively low, generally no more than 40%, and the rest are mostly used as by-products, resulting in higher production costs Sixth, serious pollution and waste in the production process of graphite

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