In the processing, use, loading and unloading, and storage and transportation of flammable and explosive hazardous materials such as petroleum, chemical, textile, pharmaceutical, paper, paint, etc., hydraulic pallet trucks are also the most widely used, including transporting raw materials to processing sites, Transport finished products to storage and transportation sites and load dangerous goods on transport vehicles. During these processes, occasional operational accidents may occur, such as the cargo accidentally falling from the fork or being punctured, the hydraulic pallet truck hits the stacked cargo, pipelines or other equipment, causing the leakage of flammable substances , Evaporation and diffusion. In addition, during the normal processing of combustible substances (such as material filling, discharge, crushing), its leakage, evaporation and diffusion are also inevitable. Once these flammable substances are mixed with air, they will form an explosive mixture. When the concentration reaches the explosive limit value and sufficient ignition energy is encountered, it will cause combustion or explosion.
When hydraulic pallet trucks work in this environment, due to the presence of ignition sources such as high temperature surfaces, high temperature exhaust, exhaust sparks, electric arcs, electric sparks, static electricity, etc., if they are not protected against explosion, potential hazards may occur at any time .
