Combined　with　the　Serial　Rubber　Continuous　Mixing　Device　(SRCMD)　and　custom-built　rotors,　the　real　continuous　regeneration　of　waste　rubber　was　realized.　The　upstream　mixer　effectively　solves　the　problem　of　pretreatment　of　waste　rubber　and　realizes　its　preliminary　regeneration.　The　downstream　twin-screw　extruder　realizes　supplementary　regeneration　and　plasticized　extrusion　of　waste　rubber.　The　optimal　process　parameters　for　preparing　SRCMD-reclaimed　rubber　were　explored　through　orthogonal　experiments.　Compared　to　the　commercially-reclaimed　rubber　produced　by　the　traditional　vulcanization　tank　high-temperature　regeneration　method,　the　SRCMD-reclaimed　rubber　well　retains　the　main　chain　structure　of　waste　rubber　and　has　obvious　advantages　in　various　properties.　The　conveyor　belt　coverings　made　by　partially　replacing　styrene　butadiene　rubber　with　SRCMD-reclaimed　rubber　fully　meet　the　requirements　of　the　national　standard　in　all　properties　and　are　better　than　commercially-reclaimed　rubber,　which　has　good　application　prospects　and　provides　a　guide　for　promoting　the　industrial　transformation　of　recycled　rubber.　©　2022　Society　of　Plastics　Engineers.