Lubricant used for food machinery and preparation method thereof

The invention provides a lubricant used for food machinery and a preparation method thereof. The preparation method comprises the following steps: firstly, adding palm oil, rice bran oil, vulcanized lard oil and nano molybdenum disulfide into a batch reactor, purging with nitrogen for three times and exhausting the air in the batch reactor, and then introducing hydrogen; secondly, heating a reactor, heating, stirring, and carrying out reaction; thirdly, after the reaction is complete, cooling to room temperature, exhausting gas in a kettle, taking out a product, filtering, and removing filterresidue, so that modified mixed oil is obtained; fourthly, mixing sodium dodecyl sulfate, thio-bisphenol and water, heating and stirring; and fifthly, adding the mixed oil and mixing with residual components, cooling, and stirring, so that the lubricant provided by the invention is obtained. The invention aims at providing the lubricant used for the food machinery, and the lubricant is environment-friendly and non-toxic a