Down-drain sludge microwave pyrolysis system and method for product collection

The invention relates to a down-drain sludge microwave pyrolysis system and method for product collection. The system comprises a microwave oven, a conical flask, a flask, a scrubbing gas flask, a quartz beaker and a thermocouple arranged in the quartz beaker; wherein the quartz beaker is correspondingly arranged inside the microwave oven cavity; a quartz tube is fixedly inserted into the quartz tube passage, a purge gas inlet pipe is connected to the quartz tube, and a quartz cap is arranged on the quartz tube, a lower end of the quartz tube, the conical flask, a condenser, the flask, a resintube and the scrubbing gas bottle are connected in series. The method comprises the following steps: preparing samples by mixing; vertically arranging the quartz beaker containing the sample in the quartz tube; supplying nitrogen with a flow rate of 3L/min and purging for 10 minutes; then supplying nitrogen gas with a flow rate of 0.2 L/min to ensure the inert atmosphere during the pyrolysis process; carrying out the pyr