Wood powder and powder sieve linkage system

Abstract

The invention discloses a wood powder and powder sieve linkage system comprising sequentially connected components of a wood power machine, a micro-powder sieving machine, and an aggregating apparatus. The aggregating apparatus comprises a cyclone aggregating device and a powder mixer. The material inlet of the aggregating device communicates with a fine powder outlet of the micro-powder sieving machine through a feeding pipe. A bottom outlet of the aggregating device communicates with the powder mixer. A top opening of the aggregating device communicates with an air inlet of a pulse dust collector through a connection soft pipe. An air outlet of the pulse dust collector communicates with an induced fan. A dust hopper outlet of the pulse dust collector communicates with the powder mixer. A discharging port is arranged on the bottom of the powder mixer. The system is advantaged in that: one-step crushing can be carried out upon plant medicine materials including roots, stems, leaves and flowers of traditional Chinese medicines, and a rough-crushing step is not required. The wood powder machine is connected with the micro-powder sieving machine, such that the sieving efficiency is improved, and the maximal particle size of the finished product is effectively controlled. The whole system is in a negative-pressure environment, such that an air-drying effect is applied to the materials, and no additional baking equipment is required. Therefore, energy can be saved.

Description

technical field [0001] The invention relates to ultrafine pulverization technology, in particular to a wood powder and powder sieve linkage system for pulverizing plant medicinal materials. Background technique [0002] Ultrafine pulverization technology is a new technology developed on the basis of powder science, along with the continuous improvement of pulverization process, breakthroughs in pulverization theory and related disciplines, and the successive emergence of new pulverization equipment. Compared with the processing and production methods of traditional Chinese medicines, ultrafine pulverization technology has the advantages of cost saving, easy application, increased drug absorption rate, and improved bioavailability. At present, in the preparation of plant superfine powder, frozen airflow pulverization is often used. For example, the invention patent of Patent No. 02117344.3 discloses a preparation method of plant superfine powder. Although this method can refi...

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Problems solved by technology

At present, in the preparation of plant superfine powder, frozen jet crushing is often used. For example, the invention patent of Patent No. 02117344.3 discloses a preparation method of plant superfine powder. Although this method can refine plant superfine powder to 50-100nm , but the production process is cumbersome and complicated, and the plant medicinal materials have to be frozen with liquid nitrogen under the protection of argon, which not only consumes high energy, but is not suitable for large-scale production requirements

Although the airflow screening method is a new type of classification method, when classifying some micron-sized materials with light weight and small particle size, they will accumulate on the screen to form agglomerates, resulting in blockage of the screen and making the screening work impossible. carried out, which greatly affects the screening efficiency

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