Preparation method of reclaimed rubber

The invention discloses a preparation method of reclaimed rubber. The preparation method comprises the following steps: successively crushing, filtering, separating, desulphurizing and refining the waste rubber, and obtaining the reclaimed rubber, and is characterized by specifically comprising the following steps: before the crushing, coating the surface of waste rubber with a softening agent, and 40 to 60 minutes later, crushing the waste rubber by using a crusher; desulphurizing the waste rubber for 40 to 50 minutes by adopting a desulphurization tank, purifying the gas in the desulphurization tank after the desulphurization, and emptying the desulphurization tank; and uniformly mixing the desulphurized reclaimed rubber and a deodorizing agent according to a ratio of (80 to 120): 1, andafter the mixing, refining. The preparation method has the advantages that the effect for reclaiming the reclaimed rubber is good, the waste rubber is convenient to crush under the effect of the softening agent, the waste ru