Spraying equipment adopting hydraulic carbon dioxide as solvent

Abstract

The invention discloses spraying equipment adopting hydraulic carbon dioxide as a solvent. The spraying equipment comprises a CO2 storage tank (1) and a coating storage tank (2). The CO2 storage tankand the coating storage tank are in pipeline connection with a mixing tank (5) through a CO2 pressing and injecting pump (3) and a coating pressing and injecting pump (4). The mixing tank and a buffering tank (6) are in pipeline connection, and the buffering tank and a sprayer assembly (7) are in pipeline connection. The spraying equipment is based on the green and environment-friendly concept. The liquid carbon dioxide can be adopted as polymer coating diluent and replaces an existing organic solvent to serve as the diluent. A pressure tank storing CO2 and the storage tank storing the polymercoating serve as carriers, and after the CO2 and the coating are mixed through the mixing tank, the mixture is input into the buffering tank, the polymer coating which is mixed in a super-critical state and is provided with a gas-liquid mixing body is sprayed to the surface of an object to a protection coating, and a dried object protection layer can be obtained after CO2 volatilization. According to the spraying equipment, pollution to the atmosphere, the water quality and other environments from the organic solvent can be relieved or eliminated.

Description

technical field [0001] The invention relates to a spraying equipment using hydraulic carbon dioxide as a solvent, and belongs to the technical field of spraying equipment. Background technique [0002] At present, the most common polymer spraying technology in the world and at home is to use organic solvents to dilute the paint and then spray it. According to statistics, 30-40% of industrial solvents are used for paint dilution. Organic solvents are one of the main factors causing air and water pollution. In order to reduce or eliminate the pollution of organic solvents to the environment; Coatings, water-based coatings and powder coatings, as well as high-pressure airless spraying, etc., have not been widely promoted due to unsatisfactory effects and limitations. Today, organic solvent-based coatings are still the main coating. Contents of the invention [0003] The object of the present invention is to provide a spraying equipment using hydraulic carbon dioxide as a sol...

AI Technical Summary

Problems solved by technology

According to statistics, 30-40% of industrial solvents are used for paint dilution. Organic solvents are one of the main factors causing air and water pollution. In order to reduce or eliminate the pollution of organic solvents to the environment; Coatings, water-based coatings and powder coatings, as well as high-pressure airless spraying, etc., but due to unsatisfactory effects and limitations, they have not been widely promoted. Today, organic solvent-based coatings are still the main coatings.

Images