Sealed transmission system

The utility model relates to the technical field of ore conveying equipment, in particular to a sealed conveying system which comprises a material lifting mechanism, a connecting pipe arranged at the top end of the material lifting mechanism, a sealed connecting pipe connected to the bottom of one end of the connecting pipe, a transfer bin arranged on the outer side of the material lifting mechanism, and a sealed cover plate installed on the top of the transfer bin. The material lifting mechanism comprises a conveying cylinder, and conveying wheels are installed at the upper end and the lower end in the conveying cylinder. In the sealed conveying system, materials can be lifted to a certain height through the material lifting mechanism and conveyed into the transfer bin through the connecting pipe to be transferred, the loading operation of ores is completed, sealed conveying is guaranteed in the ore transfer and conveying process, dust raising is avoided, and the working efficiency is improved. Dust generate