Applicable places:
a. The material to be screened is flammable and explosive gas or solid matter. At this time, it is only necessary to judge whether to use an explosion-proof motor according to the characteristics of the screened material.
b. There are flammable and explosive gases or solid substances in the place where materials are screened. At this time, it is a rigid standard for screening places: for example: petroleum and petrochemical, coal mines, medicine, etc.;
Applications and industries:
a. Reasons for petroleum and petrochemical companies: There are flammable and explosive gases and solid substances in the site, so regardless of the characteristics of the materials to be screened, the motor must be an explosion-proof motor. This condition is a rigid condition. If there is a problem in our implementation, we will bear the corresponding responsibility according to the contract law.
b. The reason for the vibrating screen for coal preparation in coal mines: there is easy gas in the site, so the motor must be an explosion-proof motor with a coal safety mark; this condition should not be vague at the same time, because it is difficult to determine the responsible person when a gas explosion occurs in a coal mine. (To select a motor, you only need to weigh the one with the coal safety mark)
c. Pharmaceutical industry: Strictly speaking, the pharmaceutical industry also needs to use gas explosion-proof motors, because there will be alcohol gas on site in the pharmaceutical industry;
d. Aluminum silver paste industry: Because the medium for screening aluminum silver paste and grinding aluminum powder is 200 solvent oil or turpentine.
Explosion-proof vibration motors can be divided into dust explosion-proof motors and gas explosion-proof motors. The two are qualitatively different, and their requirements are different. When customers specify dust explosion-proof motors, gas explosion-proof motors cannot be replaced; but at present Because the market share of dust explosion-proof motors is small and the order period is long, many manufacturers are gas general. As for the grade selection of the explosion-proof motor, the actual analysis should be carried out according to the explosive type and grade of the customer's material, as well as the situation of the workshop of the vibrating screening machine.
