Risk Analyses And Safety Protection For Static Electricity Of Polyethylene Delivery System

Polyethylene powder in the transport or storage process, will produce a large number of static.The charged powder in the transport and storage vulnerable to electrostatic discharge, especially in the silo discharge with the increase of material level also increases the energy to ignition and combustion of dust explosion (dust electrification as characteristics of their own, or ignition source), to bring great safety in production enterprises hazards.This topic specific Liaoyang Petrochemical polyethylene unit, and combined with powder transportation and storage process is easy to produce real steam explosion caused by static electricity problem, Liaoyang Petrochemical polyethylene plant processes, operating conditions, product composition and device structure for further research and Discussion. Liaoyang petrochiemical polyethylene device for powder delivery system and storage system safety demonstration. Experimental and simulated devices in field trials in the polyethylene unit investigated powder delivery system, powder position in the normal production process and the simulation device static electricity generated during the experiment, the electric field strength, flammable gases, etc., of the bed, pipelines and electric field strength within the power house were calculated, and the risk of a theoretical and practical analysis, puts forward the process of powder transport and storage measures to eliminate static electricity. Powder for electrostatic pipeline proposed within the pipe shall not have burrs, protrusions; pipeline must be grounded, a variety of delivery systems flanges, valves must be grounded jumper. Made for the installation of electrostatic powder hopper ion wind static eliminator, segmentation method using a large bin to a large hopper into small silos, eliminating silos within grounded metal point discharge phenomenon, the use of anti-static material level alarm, hopper feed process and other measures are not allowed to stop drawing fan device manufacturing process to eliminate static electricity caused by the phenomenon of steam explosion, while for the polyethylene unit designed to provide related technical support and theoretical basis.