Solid waste continuous heat treatment system based on fused salt

Abstract

The embodiment of the invention provides a solid waste continuous heat treatment system based on fused salt. The system mainly comprises a heat treatment box with a feeding breaking device, a low-temperature fused salt storage tank, a high-temperature fused salt storage tank, a tail gas waste heat recycling device and the like, solid waste is broken through the feeding breaking device, is fed intothe heat treatment box, and is subjected to thermal desorption or drying treatment in a fused salt heating area, the fused salt in the heating area is heated and conveyed through the high-temperaturefused salt storage tank, polluted tail gas generated by heating is conveyed to the low-temperature fused salt storage tank to be purified, and the purified tail gas is subjected to heat exchange, then enters a gas and liquid separator to be purified and then is exhausted into atmosphere. The high-temperature fused salt is adopted by the system to serve as a heating medium, according to differenttreatment purposes, the fused salt kind and the proportion can be properly adjusted, the system is suitable for multiple heat treatment manners of drying, thermal desorption, sterilizing and disinfecting and the like, the fused salt serving as the heating media can participate in purifying of the polluted tail gas, and finally, whole flexible and efficient running of the system can be achieved.

Description

technical field [0001] The invention belongs to the technical field of solid waste treatment, and relates to solid waste treatment technologies such as sludge drying, soil remediation, pathogenic bacteria-contaminated solid waste elimination, and in particular to a continuous heat treatment system for solid waste based on molten salt. Background technique [0002] Nowadays, with the construction and relocation of petrochemical plants, it is inevitable that some high-concentration and highly toxic organic pollutants will infiltrate into the soil, which poses a serious hazard to the ecological environment and human health, and suitable solutions are urgently needed. In addition, problems such as pathogenic microorganisms, viruses, or moisture content make solid waste such as high slaughterhouse sludge, biogas residue, and medical waste need to be sterilized and dried to eliminate potential threats to the human body or the environment. [0003] The existing solid waste heat tre...

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Problems solved by technology

[0004] The present invention aims to solve the technical problems existing in the existing solid waste heat treatment technology, such as insufficient treatment efficiency, limited application range, and difficult tail gas treatment, and provides a continuous heat treatment system for solid waste based on molten salt. The heat treatment efficiency of the system is High, the heating conditions can be flexibly adjusted according to the material, and the tail gas can be effectively purified while ensuring the long-term stable operation of the heating medium system

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