Explosion-proof Rail Transfer Trolley For Spraying Rooms

In special work scenarios such as paint spraying rooms, due to the volatilization of large amounts of flammable and explosive gases (such as benzene, toluene, xylene, etc.) from materials such as paint and diluents, the concentration of flammable substances in the air can easily reach the explosive limit, making it a typical explosion-proof environment.
The customer requires the safe operation of the track explosion-proof car in this environment, with the core being to meet the corresponding explosion-proof level through systematic explosion-proof design (such as Ex d Ⅱ CT4 in China, ATEX certification in the European Union, etc., and the specific level needs to be determined according to the hazardous gas group and temperature group of the paint booth).
Therefore, during the equipment design phase, we conducted explosion-proof selection and modification for key components:
Power system: Explosion proof motor for the rail cart is selected, whose shell can withstand internal explosion pressure and prevent flame leakage. The cable interface is equipped with explosion-proof gland to prevent electric sparks from igniting external combustible gases;
Control system: explosion-proof buttons, explosion-proof travel switches, explosion-proof contactors, etc. are used, and the components of the control circuit are all certified for explosion-proof to ensure that no electrical sparks or high temperatures are generated during operation;
Mechanical structure: For parts that may generate friction or impact (such as the contact point between the track and the wheel, the meshing point of the transmission gear), materials such as copper alloy that do not generate sparks are used, or mechanical sparks are avoided by installing buffering devices.

In addition to paint booths, the application scenarios of rail explosion-proof vehicles are very extensive, covering many industrial fields with flammable and explosive risks:
Chemical industry: used for transporting organic solvents, flammable and explosive chemicals in areas such as chemical raw material warehouses and reaction vessels;
Oil and gas industry: responsible for the transportation of equipment components, crude oil samples, etc. in hazardous areas of oil fields and refineries;
Pharmaceutical industry: as a material conveying tool in clean and explosion-proof environments for production processes that require the use of flammable solvents such as ethanol;
Grain processing industry: used for short distance transportation of finished products or raw materials in workshops where dust such as flour and starch is prone to explosion (additional dust explosion prevention requirements must be met).
The commonality of these scenarios lies in the presence of explosive environments formed by the mixing of combustible gases, vapors, dust, or fibers with air. Through customized explosion-proof design, rail explosion-proof vehicles can avoid ignition sources (such as electric sparks, high temperatures, mechanical sparks, etc.) from the source, ensuring stable and safe material transportation in hazardous environments and providing reliable protection for explosion-proof operations in industrial production areas.

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