Closed material throwing system for acetaminophen production

The utility model provides a closed material throwing system for acetaminophen production. The closed material throwing system comprises a material throwing centrifugal machine, a washing material introducing mechanism for introducing a fluid type washing material medium into the material throwing centrifugal machine, and a liquid-thrown-from-the-centrifugal-machine receiving tank for receiving liquid thrown from the material throwing centrifugal machine, wherein an upper opening of the material throwing centrifugal machine and the liquid-thrown-from-the-centrifugal-machine receiving tank are respectively a first cover body and a second cover body which are covered in a sealing manner; the upper opening of the first cover body is provided with a pipeline hole; the washing material introducing mechanism is closely communicated with the pipeline hole in an inserting manner to introduce the washing material medium into the material throwing centrifugal machine; a closed liquid-thrown-from-the-centrifugal-machine lead-out mechanism is arranged between the material throwing centrifugal machine and the liquid-thrown-from-the-centrifugal-machine receiving tank; one end of the lead-out mechanism is closely communicated with a liquid outlet arranged at the bottom of the material throwing centrifugal machine; and the other end of the lead-out mechanism is closely communicated with a liquid inlet arranged on the liquid-thrown-from-the-centrifugal-machine receiving tank. Therefore, the dissipation of pungent smell in the air is suppressed, and the working environment of field operators is improved.