Ball-milling type pyrolysis activation furnace

Abstract

The invention provides a ball-milling type pyrolysis activation furnace. The ball-milling type pyrolysis activation furnace comprises a furnace body, a driving device located on the top of the furnacebody, a stirring shaft connected with the driving device, nozzles with the same ends inserted into the top of the furnace body, a heat tracing band wound around the outer side of the furnace body anda plurality of stainless steel balls arranged in the furnace body in a filled mode. One end of the stirring shaft is rotationally connected with the driving device, the other end of the stirring shaft extends into the furnace body, and a stirring paddle is arranged on the stirring shaft, is arranged in the furnace body and rotates along with the stirring shaft. The stainless steel balls in the ball-milling type pyrolysis activation furnace have three motion modes, materials can be fully ground, and the pyrolysis effect is better. In addition, three different temperature zones are arranged, sothat rapid reaction, grinding and decomposition of a radioactive organic solvent are realized; the multiple nozzles are used for continuously feeding the materials, decomposed substances enter a rearsection to be processed through a screening plate at the bottom of the furnace body, and the continuous work can be realized; and the stirring shaft with a hollow structure is arranged, and a bearingon the stirring shaft is prevented from being sintered and stuck through cooling liquid.

Description

technical field [0001] The invention relates to the technical field of pyrolysis activation furnace, in particular to a ball mill type pyrolysis activation furnace. Background technique [0002] In nuclear power plants, spent fuel reprocessing, hospitals, dissection rooms, garbage dumps and other places, a large amount of radioactive organic solvent substances harmful to the human body will be produced during the production process. High temperature combustion and cracking are usually used to process these radioactive substances, resulting in waste The radioactive material is then processed and discharged. [0003] At present, for the treatment of some organic solvents containing radioactive substances, fluidized bed is often used for combustion treatment. Fluidized bed is currently the most widely used pyrolysis process method. According to the number of reactors, it can be divided into single-bed, double-bed and multi-bed. bed. Among them, the single-bed pyrolysis proces...

AI Technical Summary

Problems solved by technology

[0005] However, when the device is performing pyrolysis treatment, the pyrolysis reactor is not controlled by different temperature zones. The pyrolysis effect of biomass in the reactor is not ideal. If the biomass is not fully burned at the same temperature, it will adhere to the The surface of the grinding medium cannot be removed. As time goes by, a large amount of substances will continue to adhere to the surface of the grinding medium and affect pyrolysis

In addition, pyrolysis volatile gas and pyrolysis coke are discharged through the top of the reactor, which affects the processing capacity of the reactor; the stirring shaft in the reactor rotates continuously at high temperature, and the bearing has the risk of sintering and jamming, causing the stirring shaft fail

Images