Totally-enclosed parallel apparatus of production and dosage

The invention discloses a totally-enclosed parallel apparatus of production and dosage. The apparatus is characterized in that: the apparatus comprises a dosage bunker, an addition bunker, a first seal cylinder, a second seal cylinder, a third seal cylinder, a fourth seal cylinder, a first diaphragm compressor, and a second diaphragm compressor; the dosage bunker is connected with the second seal cylinder through a pipeline, the discharge hatch of the first seal cylinder is connected with the second diaphragm compressor through a pipeline, the output terminal of the second diaphragm compressor is connected with the fourth seal cylinder through a pipeline, the fourth seal cylinder is connected with the dosage bunker through a pipeline, and raw materials are added to the second diaphragm compressor through the third seal cylinder; and the output terminal of the addition bunker is connected with the first seal cylinder through a pipeline, the output terminal of the first seal cylinder is connected with the first diaphragm compressor through a pipeline, and the output terminal of the first diaphragm compressor is connected with a polymerization kettle. The apparatus of the present invention has the advantages of reasonable structure, easy arrangement, low cost, convenient operation, no leakage, and safety and reliability.