METHOD AND DEVICE FOR ANAEROBIC PYROLYSIS TREATMENT OF DEAD-OF-DISEASE LIVESTOCK AND MUNICIPAL ORGANIC REFUSE

摘要

Disclosed is a method for anaerobic pyrolysis treatment of dead-of-disease livestock and municipal organic refuse, which uses an anaerobic pyrolysis device to perform a harmlessness treatment on dead-of-disease pigs, the treatment being a chemical reaction process performed in a sealed, oxygen-free, non-combustible, high-temperature state, comprising heating the bodies of pigs to a high temperature under an anaerobic state, and by the action of thermal decomposition through reactions such as vaporization, pyrolysis, dehydrogenation, thermal condensation and carbonization, evaporating the moisture from the pig bodies, converting the organics therein to combustible gases and organic carbon, and killing various types of bacteria in the bodies of the dead pigs via the high temperature. Thus, a harmlessness and reutilization treatment of the dead-of-disease livestock is achieved, and environmental pollution and propagation of fatal animal diseases, such as foot-and-mouth disease, highly pathogenic avian influenza, highly pathogenic blue-ear pig disease and swine fever are avoided. Also disclosed is a device for realizing the above-mentioned method.

主权项

1. A device for anaerobic pyrolysis treatment of dead-of-disease livestock and municipal organic refuse, comprising:
an anaerobic pyrolysis device, wherein an isolation room and an equipment room are sequentially disposed at one end of the anaerobic pyrolysis device, a dust collection room is disposed between the isolation room and the equipment room, an air outlet is disposed on the top of the dust collection room, and the air outlet is connected with a dedusting device; a power room is disposed at the other end of the anaerobic pyrolysis device, and a combustion chamber of the anaerobic pyrolysis device is disposed between the power room and the equipment room; an anaerobic pyrolysis chamber is disposed inside the combustion chamber, a conveying pipeline is disposed at one end and a driving cylinder is disposed at the other end of the anaerobic pyrolysis chamber, wherein the outer end of the conveying pipeline extends into the isolation room, and the driving cylinder is in the power room; a gas discharge pipe is disposed in the isolation room, the lower part of the gas discharge pipe is connected with a gas discharge port at the bottom of the isolation room, the gas discharge port is connected with a spray column, a gas outlet of the spray column is connected with an air inlet of a coal gas discharge and feed fan, and an air outlet of the coal gas discharge and feed fan is connected with a combustor; and an inspection port is disposed on the top of the isolation room which is vertically opposite to the gas discharge pipe; two water spray pipes are mounted in the inspection port on the top of the isolation room, one of the water spray pipes extends into the gas discharge pipe, the other one of the water spray pipes extends to an inner floor of the isolation room, and a bio-oil discharge port is disposed at the inner floor of the isolation room; a conveying sleeve is mounted along the axis in the conveying pipeline, one end of the conveying sleeve protrudes from the conveying pipeline, and the other end of the conveying sleeve extends into the anaerobic pyrolysis chamber and is fixed to a discharge plate by welding; a spiral plate is disposed in the conveying pipeline, the vertical intersection angle between the spiral plate and the conveying pipeline is 5°-15° sinistrally, and the height of the spiral plate is 20-30% of the diameter of the conveying pipeline; and a screw conveyor is disposed on the outer face of the isolation room, the screw conveyor passing through the isolation room and extending into the conveying sleeve; an activated steam conveying pipe is mounted along the axis in the driving cylinder, an inner end plate of the activated steam conveying pipe is in close contact with a baffle ring of the driving cylinder, and a fixing plate of the activated steam conveying pipe is in connection with the outer end of the driving cylinder; a wireless temperature transmitter is mounted on the fixing plate, a sensing element of the wireless temperature sensor is horizontally mounted along the activated steam conveying pipe and extends into the anaerobic pyrolysis chamber; and the outer end of the activated steam conveying pipe is connected with an external steam pipe.