Radioactive waste resin grinding system with redundant device

Abstract

The invention belongs to the field of treatment of nuclear power station radioactive three wastes and particularly discloses a radioactive waste resin grinding system with a redundant device. The radioactive waste resin grinding system with the redundant device comprises a temporary storage tank A, a pump A, an isolation valve A, a grinding machine A, a temporary storage tank B, a pump B, an isolation valve B and a grinding machine B and further comprises multiple isolation valves and pipelines, wherein the multiple isolation valves and the pipelines are arranged between the temporary storagetank A and the pump A, between the pump A and the isolating valve A, between the temporary storage tank B and the pump B, between the pump B and the isolation valve B. The temporary storage tank A communicates with the grinding machine A. The grinding machine A communicates with the isolation valve A. The temporary storage tank B communicates with the grinding machine B. The grinding machine B communicates with the isolation valve B. The radioactive waste resin grinding system with the redundant device can ensure that when one of the two series of grinding devices loses the grinding and conveying capacity and waste resin cannot be normally grinded as a result, the redundant device guides the unground waste resin into the normal series from the faulty series so as to continue completing grinding of the waste resin.

Description

technical field [0001] The invention belongs to the field of treatment and disposal of three radioactive wastes of nuclear power plants, and in particular relates to a radioactive waste resin grinding system which realizes mutual pouring of radioactive waste resin in two mutually independent grinding systems. Background technique [0002] In order to minimize radioactive waste and reduce the volume of radioactive waste resin, the nuclear power plant has built a radioactive waste treatment center and introduced thermal super compression technology to process the radioactive waste resin produced by the unit. [0003] The technical process of thermal super compression technology is relatively complicated, including multiple processes such as receiving, measuring, grinding, drying, and compressing radioactive waste resin. In order to ensure the processing capacity of the radioactive waste treatment center and meet the production needs, the radioactive waste treatment center is d...

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Problems solved by technology

However, the design did not take into account the sudden failure of the grinding machine or the sudden failure of the circulating pump during the grinding process. At this time, these unfinished waste resins cannot be effectively exported from the series, because the unfinished radioactive waste resins It cannot be discharged to the downstream system, and the radiation level of the waste resin is very high. If the waste resin is exported out of the system through temporary measures such as dismantling the pipeline, it will be time-consuming and laborious, and it will also cause a large amount of unnecessary radiation exposure to personnel. The important thing is that the system is still Failure to obtain timely maintenance delays the normal production of the factory building, and there are major safety hazards in terms of personnel safety, equipment safety and production safety.

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