Harmless disposal method for dead livestock

Abstract

The invention discloses a harmless disposal method for dead livestock. Direct harmless disposal is carried out on materials by means of a deep-frying method, a heat conversion link is canceled, and the materials are heated quickly at normal pressure to achieve purposes of high-temperature sterilization and drying by means of characteristics of high heat transfer coefficient and high boiling pointof grease, so that the energy utilization rate and the disposal speed are improved. The harmless disposal method comprises the following steps of (1) material crushing: crushing dead livestock which is stored to a certain quantity, wherein the materials crushed to certain grain sizes enter a container; (2) high-temperature deep-frying: adding a certain amount of grease into the container in the step (1), and then heating the container directly by employing heating equipment, wherein the material temperature is raised to a certain temperature to achieve the sterilizing demand; the raised temperature is higher than the boiling point of water; evaporated water vapor enters a tail gas treatment system; and finally, a mixture of grease and residues is left in the materials; (3) separation of grease and residues; (4) dry residue squeezing; and (5) grease purification.

Description

technical field [0001] The invention relates to a method for treating dead poultry, in particular to the harmless treatment of dead poultry. Background technique [0002] In recent years, with the rapid development of the country's economy, the animal husbandry industry has also developed rapidly, and the scale has continued to expand, and the number of livestock deaths in the breeding will also increase. The country pays more and more attention to the harmless treatment of these dead livestock. Some of the current harmless treatment methods have insufficient sterilization, some of them are too slow in processing speed, and some of them are too low in resource utilization, which limits the development of the industry of harmless treatment of dead poultry and livestock. [0003] At present, the harmless treatment process of such dead poultry includes drying method, wet method, incineration method, landfill method, fermentation method and the like, but these methods all have t...

AI Technical Summary

Problems solved by technology

[0008] The humidification method uses direct steam heating to process the material. This method will increase the amount of wastewater, and the resource utilization rate is low, which is likely to cause the second generation of garbage.

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