Circulating type jet mill and milling system thereof

Abstract

The invention relates to a milling device and system, specifically relates to a circulating type jet mill with convenience in use, high classifying precision and good milling effect, and relates to a milling system matched with the circulating type jet mill. The circulating type jet mill provided by the invention comprises a frame (1), a milling chamber (2) and a compressing air reservoir (3), wherein the milling chamber (2) is arranged on the frame (1); the compressing air reservoir (3) is connected with the lower part of the milling chamber (2); the milling chamber (2) is of annular oval shape; a classifying device is arranged on the upper part of the milling chamber (2); a feeding port (4) and a plurality of milling nozzles (5) are arranged on the lower part of the milling chamber (2); air inlet ends of the milling nozzles (5) are communicated with the compressing air reservoir (3); and air outlet ends of the milling nozzles (5) are respectively in tangential connection with the circles on the lower part of the milling chamber (2). The milling system provided by the invention comprises any circulating type jet mill, a product separating device and an air compressor (14), wherein the product separating device is connected with the outlet end of the classifying device and the air compressor (14) is connected with the compressing air reservoir (3).

Description

technical field [0001] The invention relates to a pulverizing device and system, in particular to a circulating jet pulverizer and a pulverizing system thereof. Background technique [0002] Powder technology is regarded as one of the most important basic technologies to support high-tech industries. The development of modern engineering technology requires raw materials and products in powder state to have fine and uniform particle size and as low pollution as possible. After the particle size is refined, the specific surface area increases, which can be used in various occasions, such as fillers, dyes, pigments, medicines, catalysts, magnetic memory components, advanced abrasives, solid lubricants, fine ceramics, cosmetics, etc. performance. In recent years, under the stimulation of industrial demand, the fine processing technology of powder has made great progress. The main method to obtain ultra-fine powder is to start from the crushing and grinding of solid raw materi...

AI Technical Summary

Problems solved by technology

However, due to the extremely light specific gravity of the ultrafine powder, it is easy to be carried away by the airflow in the pulverizer. In the large-space pulverization chamber, the probability of the powder staying before colliding with the nozzle and being crushed by the airflow is very low. Therefore, the The efficiency of the machine is not high when crushing and processing ultra-fine powder

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