Premixing device for preparing 5-methoxytryptamine

The premixing device is characterized in that a plurality of stirring rods are uniformly distributed on the side surface of a stirring shaft, a feeding hole is formed in the top of a stirring barrel, a driven roller is arranged on the outer side of one end, penetrating through the stirring barrel, of the stirring shaft in a sleeving manner, and the other end of the stirring shaft penetrates through the driven roller; the driven roller is in sliding connection with the stirring shaft through a through hole formed in the driven roller, and a clamping groove is formed in the inner side of the through hole. When the device works, firstly, raw materials are put into the stirring barrel, a driving motor is started, the driving motor drives a driving roller to rotate, the driving roller drives a driven roller to rotate, the driven roller drives a stirring shaft to rotate, meanwhile, the driving roller drives a first bevel gear to rotate, the first bevel gear drives a second bevel gear to rotate, and the second bevel