Rod mill powder-sieve linkage system

Abstract

The invention discloses a rod mill powder-sieve linkage system. The rod mill powder-sieve linkage system comprises an air blower, a rod mill, a micro-powder sieve and a material collection device, wherein the air blower, the rod mill, the micro-powder sieve and the material collection device are orderly communicated. The material collection device comprises a cyclone material collection unit and a double-helix vertical powder mixer. A feed inlet of the cyclone material collection unit is communicated with a fine powder outlet of the micro-powder sieve by a feeding pipe. A bottom discharge hole of the cyclone material collection unit is communicated with the double-helix vertical powder mixer by a windproof feeder. The top of the cyclone material collection unit is communicated with a pulsed deduster through a flexible pipe. An air outlet of the pulsed deduster is communicated with a draught fan. An ash bucket outlet of the pulsed deduster is communicated with the double-helix vertical powder mixer. A feed inlet of the rod mill is communicated with a blower nozzle of the air blower. A bottom discharge hole of the micro-powder sieve is communicated with the feed inlet of the rod mill and the blower nozzle of the air blower. A discharge hole of the rod mill is communicated with a sieving chamber of micro-powder sieve. The rod mill powder-sieve linkage system can realize continuous large-scale production of various traditional Chinese medicine micro-powder at a normal temperature. The whole rod mill powder-sieve linkage system can work in a negative pressure environment, does not need additional drying equipment, and saves energy.

Description

technical field [0001] The invention relates to ultrafine pulverization technology, in particular to a rod mill powder sieve linkage system for pulverizing various Chinese 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, mechanical pulverization and airflow sieving classification are commonly used in the preparation of traditional Chinese medicine ultrafine powder. Rod mill crushing is a kind of mechanical crushing method. Although the crushing effi...

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Problems solved by technology

Rod mill crushing is a kind of mechanical crushing method. Although the crushing efficiency is high, it cannot separate the powder that meets the quality requirements in an effective and timely manner. It can neither meet the needs of continuous large-scale production nor reduce the energy consumption in the production process.

The commonly used airflow sieving classification method is a new type of classification method. The biggest advantage of the airflow sieving machine is to use the airflow carrying the powder to impact through the screen for effective separation. However, for some micron-sized materials with light weight and small particle size When grading, it will accumulate on the screen to form agglomerates, which will cause the screen to be blocked, resulting in the failure of the screening work, which greatly affects the screening efficiency and cannot meet the needs of large-scale industrial production.

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