Wood powder and powder sieve linkage system

Abstract

A system formed by linking a wood powder machine and a powder sieve comprises a wood powder machine (1), a fine powder screening machine (2) and a material aggregation device that are communicated sequentially. The material aggregation device comprises a cyclone material aggregator (3) and a powder mixer (4). The cyclone material aggregator has a feeding port being in communication with a fine powder discharging port of the fine powder screening machine through a feeding pipe (5), and has a bottom discharging port being in communication with the powder mixer. A top opening of the cyclone material aggregator is in communication with an air input port of a pulse dust collector (7) through a hose (6). An air output port of the pulse dust collector is in communication with a draft inducing fan (8). An ash bucket outlet of the pulse dust collector is in communication with the powder mixer (4). The bottom of the powder mixer is provided with a discharging port. Roots, stems, leaves, and flowers of herbal medicines can all be pulverized in one step, saving the need of coarse crushing. The wood powder machine and the fine powder screening machine are connected, thereby increasing the screening efficiency, and effectively controlling the maximum diameter of final products. The whole system is in a negative-pressure environment, so as to have a blow-drying effect on materials, and save the need of an additional drying device, thereby conserving energy.

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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