Naked cooling air separation device for synthesizing ammonia in coal chemical industry

The utility model discloses a naked cold air separation device for synthesis ammonia in coal chemical industry, which comprises an air separation device body, a tank body is arranged at the rear end of the air separation device body, a filter cartridge is arranged above the tank body, a cartridge cover is arranged above the filter cartridge, a filter screen cartridge is arranged in the filter cartridge, and a filter screen is arranged in the filter screen cartridge. A fixing block is installed below the filter screen cylinder, an air channel is formed in the inner wall of the filter screen cylinder, and an air separation cold box is installed on the right side of the air separation device body. According to the naked cold air separation device for synthesis ammonia in the coal chemical industry, air sucked into the tank body is filtered through the filter cartridge and an internal structure of the filter cartridge, so that a large amount of dust in the air is prevented from being accumulated on the air filter