Concrete release agent used in low-temperature dry environment and production process thereof

The invention belongs to the technical field of release agents, particularly relates to a concrete release agent used in a low-temperature dry environment and a production process thereof, and solves the technical problems in the background technology. The concrete release agent is prepared from the following raw materials in parts by weight: 40 to 70 parts of polyvinyl alcohol 1788 powder, 40 to 70 parts of engine oil, 3 to 7 parts of lauryl sodium sulfate, 1 to 3 parts of alkylphenol polyoxyethylene ether, 0.1 to 0.3 part of sodium chloride and 0.1 to 0.3 part of sodium nitrite. The production process of the concrete release agent comprises the four steps of material taking, feeding, detecting and packaging. When in use, the release agent can be dissolved in cold water, is convenient to use, and has the performance of helping concrete to resist cracks at low temperature; the production process is very simple, the release agent can realize exothermic reaction during production and can provide heat for subseq