Method of medical waste sorting and high-temperature pyrolysis treatment

Abstract

The invention discloses a method of medical waste sorting and recycling and high-temperature pyrolysis treatment. The method of the medical waste sorting and recycling and high-temperature pyrolysis treatment comprises the steps that sorting and collecting medical waste are carried out, waste raw materials without special treatment requirements are sorted out through a manual sorting mode; then the waste raw materials are subjected to high temperature sterilization treatment through a high temperature sterilization device, and the selected waste is further sorted through magnetic separation, air classification and gravity jigging; and separated magnetic metals, aluminum, glass, sand and stone and the like can be treated by recycling departments to realize recycling of useful substances inthe medical waste, separated waste with high content of other organics can be converted into an available energy form through the high-temperature pyrolysis treatment, and the waste of resources is facilitated to be reduced; and the method of the medical waste sorting and recycling and the high-temperature pyrolysis treatment has the characteristics of high reduction degree, low secondary pollution and high energy recovery rate.

Description

technical field [0001] The invention relates to a sorting recovery and treatment method of medical waste, in particular to a sorting recovery and high-temperature pyrolysis treatment method of medical waste. Background technique [0002] Environmental and development issues have become the focus of global attention. As a prominent environmental issue, waste disposal, especially the disposal of hospital waste, has attracted more and more attention from the whole society and people in the industry. With the continuous progress and development of society, with the With the continuous emergence of various new diseases, new technologies and medicines are constantly being produced, and the types and quantities of medical waste are undergoing great changes. Especially in densely populated areas, the treatment of medical waste is particularly important. . [0003] However, the vast majority of medical waste has not been scientifically treated. With the widespread use of disposable ...

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Problems solved by technology

[0003] However, the vast majority of medical waste has not been scientifically treated. With the widespread use of disposable medical supplies, the output of solid waste in hospitals has increased; in order to save costs, some units often mix medical waste with domestic waste for disposal. , while disposable infusion sets, surgical resections, used gauze, pharmaceutical waste residue, blood and other wastes in medical waste contain a large number of harmful substances such as pathogenic microorganisms and parasites, which are highly infectious and require professional treatment. Segregation and special incineration treatment must not be mixed with ordinary domestic waste. If it is not handled properly, it will definitely cause secondary infection and environmental pollution, and pose a serious threat to the environment and human health.

[0004] With people's recognition of the strong pollution and virality of medical waste, coupled with the flammability and high calorific value of medical waste, people began to incinerate medical waste to generate electricity. Although this method can use the calorific value in waste to provide people It brings convenience, but the toxic gases produced by medical waste, such as sulfide and dioxin, make people unbearable, and it is difficult to remove the toxic substances in medical waste only by burning, and the gas and waste produced by incineration are still harmful to the environment. There are "sequelae" of pollution, so there are special machines for medical waste treatment: high-temperature incinerators, that is, medical waste incinerators, such as grate incinerators in the United States; circulating fluidized beds in Japan, Spain, France, and Germany grate furnaces in Canada; rotary furnaces in Switzerland and domestic medical waste rotary grate furnaces; however, this treatment method still cannot completely eliminate the toxicity of medical waste, and the generation of dioxins still cannot be solved; at the same time, due to the high temperature The tar produced is very easy to block the furnace pipe, which has a great impact on the maintenance of the equipment.

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