2results about How to "Improved purification" patented technology

The utility model relates to the field of sewage purification especially is segmental solid -liquid separation sewage purification device, including purification tank, the inside solid -liquid separation tank is installed through the axle to purification tank, the outside fixed mounting of purification tank has motor no.

The utility model relates to the field of low-temperature rectification oxygen production, in particular to a device for extracting high-purity liquid oxygen from low-temperature rectification liquid oxygen, which comprises a rectification tower I, a main heat exchanger, a rectification tower II, a condenser I, a condenser II, a condenser III, a condenser IV and a condenser V, an extraction opening I is formed in one side of the middle part I and is communicated with an inner cavity of the lower part I through a spraying pipeline; a liquid oxygen condensation outlet of the condenser III is connected with a liquid oxygen inlet of the rectifying tower II through a liquid oxygen conveying pipeline; a high-purity liquid oxygen outlet is formed in one side of the bottom of the second lower portion of the second rectifying tower and connected with the main heat exchanger through a first oxygen conveying pipeline, high-purity liquid oxygen is conveyed to a high-purity liquid oxygen storage tank after heat exchange, and an oxygen outlet is formed in one side of the second upper portion of the second rectifying tower and connected with the main heat exchanger through a second oxygen conveying pipeline. The device is simple in structure and convenient to operate and maintain, and a high-purity oxygen product with the oxygen purity higher than 99.99988% can be obtained through multi-stage rectification treatment.