In my country's economic industry, the industrial economy occupies a large proportion. However, in industrial working environments, certain flammable substances are produced in many production sites. For example, there are explosive substances in about two-thirds of underground coal mines; in the chemical industry, explosive substances exist in more than 80% of the production workshop area. Oxygen : Oxygen is ubiquitous in the air. Therefore, a large number of electrical instruments are used in the production process, and various frictional sparks, mechanical wear sparks, static sparks, high temperatures, etc. are inevitable, especially when the instruments and electrical faults occur.
         Objectively, many industrial sites meet the explosion conditions. When the mixed concentration of explosive substances and oxygen is within the explosion limit range, if there is an explosive source, an explosion will occur. Motors working in this environment require explosion-proof motors, so explosion-proof motors came into being.
         Explosion-proof motors are mainly used in coal mines, oil and gas, petrochemical and chemical industries. In addition, it is also widely used in textile, metallurgy, city gas, transportation, grain and oil processing, papermaking, medicine and other departments. As the main power equipment, explosion-proof motors are usually used to drive pumps, fans, compressors and other transmission machinery.
         With the development of science and technology and production, places with explosion hazards are also increasing. For example, the production of edible oil used to use the traditional pressing process. After the 1970s, my country began to introduce foreign advanced oil extraction process, but this process uses a chemical solvent containing hexane, which is flammable and explosive. substances; therefore, the leaching oil workshop has become an explosion-hazardous place, requiring the use of explosion-proof motors and other explosion-proof electrical products. Another example is that in recent years, my country's highways have developed rapidly, and a large number of fuel gas stations have appeared, which also provides a new market for explosion-proof motors. It is believed that the explosion-proof motor market will develop rapidly in recent years.