Negative pressure feeding equipment for ABC powder fire extinguishing agent production

The utility model discloses negative pressure feeding equipment for ABC powder fire extinguishing agent production, which comprises a support, a negative pressure bin is fixedly arranged at the upper end of the support, the lower end of the negative pressure bin penetrates through the support and is fixedly connected with a discharging pipe, an electromagnetic valve is arranged in the discharging pipe, a supporting column is arranged at the corner of the bottom of the support, and a vacuum pump is fixedly arranged at the upper end of the negative pressure bin. A filter screen is fixedly connected to the inner side of the negative-pressure bin, a through hole is formed in the left side of the negative-pressure bin, and a crushing mechanism is arranged on the left side of the negative-pressure bin. By adopting the structure, smoke in the negative pressure bin is conveyed into water in the water tank through the second connecting pipe by the exhaust fan through the first connecting pipe, the smoke is released th