Modern Mining ›› 2024, Vol. 40 ›› Issue (03): 223-226.
Previous Articles Next Articles
In order to ensure the normal transportation of materials in Muguajie Coal Preparation Plant and ensure the supply of materials for subsequent section operations，in view of the blockage problem of the coal drop pipe in Muguajie coal preparation plant，the related research on the intelligent blockage removal system of the coal drop pipe was carried out.Based on the analysis of the existing blockage removal equip⁃ ment，technology and the actual blockage causes of Muguajie coal preparation plant，an intelligent blockage removal system with low energy consumption，low maintenance and smooth operation of the whole coal drop chute is developed.The intelligent blockage removal system has a total of 8 layers of pneumatic flow-support⁃ ing devices on the main inflection point and the outside of the variable diameter of the coal drop pipe.Each layer of pneumatic flow-supporting device is composed of four flow-supporting nozzles close to the pipe wall. Through the automatic control system，the high-speed airflow is sprayed along the pipe wall to reduce the friction between the pipe wall and the material，and fundamentally eliminate the problem of sticking and arching at the same time.And the system has a pre-clearing function. The system can open itself at a set time to ensure smooth pipeline，which effectively solves the problems of fixed vibration position，small clearing range，poor stability，excessive work and high cost in the existing technology.
