Ultrafine pulverizer capable of classifying materials by means of air flow impact mode

Abstract

The invention discloses an ultrafine pulverizer capable of classifying materials by means of an air flow impact mode. The ultrafine pulverizer comprises a rack, a pulverizing device arranged on the rack, a feeding device located on one side of the pulverizing device, a classifying device located over the pulverizing device and a cooling device located on the other side of the pulverizing device; the pulverizing device comprises a pulverizing chamber arranged on the rack and an air inlet chamber located under the pulverizing chamber; the feeding device comprises a feeding support, and the feeding support is provided with a first feeding hopper, a crushing device, a second feeding hopper and a material blowing device; the classifying device comprises a classifying box, classifying impellers are arranged in the classifying box, a flow distributing device is arranged under the classifying impellers, a fine material discharging pipe is arranged above the classifying impellers, and a material collecting device is connected to the fine material discharging pipe. According to the ultrafine pulverizer, the material agglomeration phenomenon can be reduced, therefore, the pulverizing efficiency is improved, the environmental temperature in work is lowered, and then the product quality is guaranteed.

Description

technical field [0001] The invention relates to the field of material crushing equipment, in particular to an ultrafine pulverizer which adopts an airflow impact method to divide materials. Background technique [0002] Powder technology is regarded as one of the most important basic technologies to support high-tech industries. After the particles are refined, the specific surface area is large and evenly distributed, showing many excellent properties. It is used in fillers, dyes, pigments, medicines, catalysts, magnetic Widely used in memory components, advanced abrasives, solid lubricants, fine ceramics, cosmetics, etc. The methods of obtaining ultrafine powder are mainly mechanical and chemical methods. The chemical method is only used in a few special fields due to its complicated process and high cost; and the mechanical pulverization method is low in cost, high in output, simple in process, and can improve materials. It is widely used due to its advantages of perform...

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Problems solved by technology

[0004] In the above technical solutions, there are the following disadvantages: 1. Because the particle size of the material is relatively small and the specific surface area is large, the agglomeration phenomenon between the materials is easy to occur. When the material enters the pulverizer, it is often accompanied by large and small material clusters. , most of these material clusters will disperse when colliding and crushing, and the remaining part will be impacted and compacted during the impact process, forming a hard material cluster, and then falling into the slag discharge port because it cannot be broken, and then the pulverizer will be discharged. The pulverization efficiency is low; 2. When the pulverizer performs micro-powder pulverization, a large amount of heat is generated due to the continuous impact of the material, which sometimes leads to the deterioration of the quality of the pulverized product. In addition, when the pulverized material is soybeans and other lipids When there is a large amount of objects, it will become like a state of kneading with oil and cannot be crushed; 3. When the materials are classified, because they are unevenly distributed and moved around, the classification efficiency of the materials is low. thus affecting the production efficiency

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