Animal carcass harmless treatment system and process

Abstract

The invention discloses an animal carcass harmless treatment system and process, and relates to the field of organic solid waste treatment. The problems of high treatment cost, low added value of products, easiness in causing air and underground water source pollution, unpleasant odor and difficulty in site selection of an existing incineration disposal method and an existing burying method are solved. The treatment process comprises closed transportation; disinfection; crushing; high-temperature and high-pressure sterilizing; drying; stirring; spiral squeezing; and air cooling and impurity removing. According to the animal carcass harmless treatment system and process, a chemical drying high-temperature high-pressure method is adopted, high-temperature high-pressure saturated steam is introduced into an interlayer and a middle shaft of a chemical tank to indirectly heat materials, so that pathogens in livestock and poultry carcasses are completely killed when the interior of the tankreaches a high-temperature (120-180 DEG C, 0.25-0.35 mpa) high-pressure state, and the purpose of drying the materials is achieved by vacuumizing and heating after pressure relief; and the treated materials can be used as raw materials of bio-organic fertilizers or non-human edible animal feeds, and the obtained grease can be used for industrial oil or refining biodiesel.

Description

technical field [0001] The invention relates to the technical field of organic solid waste treatment, in particular to a harmless treatment system and treatment process for animal carcasses. Background technique [0002] There are many types of animal epidemic diseases in my country, complex pathogens, and a wide range of epidemics. Major animal diseases such as foot-and-mouth disease and highly pathogenic avian influenza are still prevalent in some areas, and there are phenomena of immune transmission and immune clinical disease. As the production scale of animal husbandry continues to expand and the breeding density continues to increase, the opportunities for livestock and poultry to be infected with pathogens increase, the probability of pathogenic mutations increases, and the risk of emerging diseases increases. Studies have shown that 70% of animal diseases can be transmitted to humans, and 75% of human emerging infectious diseases come from animals or animal-derived ...

AI Technical Summary

Problems solved by technology

[0009] In order to solve the problems of high processing cost, low product added value, easy air and groundwater pollution, bad smell and difficult site selection existing in the existing incineration disposal method and landfill method, the present invention provides a harmless animal carcass Treatment system and treatment process, which can effectively improve the shortcomings of incomplete sterilization, low added value of products, slow processing speed and long cycle, and meet the technical specifications of the Ministry of Agriculture for the harmless treatment of sick and dead animals