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High temperature steam centralized and safe processing method for medical refuse, and the device thereof

A technology of high-temperature steam and medical waste, which is applied in the direction of waste disinfection or sterilization, and can solve the problems of undeveloped technology

Inactive Publication Date: 2006-06-21
吴桐
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Regarding the medical waste incineration technology, the State Environmental Protection Administration has issued the "Technical Specifications for the Construction of Medical Waste Centralized Incineration Disposal Projects" as a normative document for the construction of medical waste disposal projects using incineration technologies, but there is no mature technology

Method used

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  • High temperature steam centralized and safe processing method for medical refuse, and the device thereof
  • High temperature steam centralized and safe processing method for medical refuse, and the device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 As shown, the infectious medical waste containing substances with high combustion value enters through the automatic feeding device, and is automatically sealed and crushed. Through automatic closed sorting, high combustion value substances in waste are separated. The incineration of high-combustion value substances can generate part of the heat for use by high-temperature steam. After automatic airtight sorting, the separated medical waste is sterilized under high-temperature steam. The treated waste is then treated with tail gas purification and finally landfilled.

[0042] When high-temperature steam treatment is performed, the sterilization temperature is 134°C. Before the high-temperature steam treatment, vacuumize by means of pre-vacuum, and the vacuum degree is 0.095MPa.

[0043] Sorting and crushing are strictly carried out under airtight conditions to prevent highly dangerous bacteria-carrying dust from overflowing.

[0044] Using thermoph...

Embodiment 2

[0046] Such as figure 1 As shown, the infectious medical waste containing substances with high combustion value enters through the automatic feeding device, and is automatically sealed and crushed. Through automatic closed sorting, high combustion value substances in waste are separated. The incineration of high-combustion value substances can generate part of the heat for use by high-temperature steam. After automatic airtight sorting, the separated medical waste is sterilized under high-temperature steam. The treated waste is then treated with tail gas purification and finally landfilled.

[0047] When high-temperature steam treatment is performed, the sterilization temperature is 134°C. Different from Embodiment 1, this embodiment is vacuumed in a pulsating vacuum manner, and the air extraction rate is higher than 93%.

[0048] Using thermophilic stearobacillus spores with strong heat resistance as the indicator species, the sterilization rate can reach the requirement ...

Embodiment 3

[0050] Such as figure 2 As shown, the high-temperature steam centralized safe disposal equipment for medical waste includes: a feeding device, a closed automatic crushing device, a high-temperature sterilization chamber, and an exhaust gas purification device, which are connected in sequence by pipelines.

[0051] The waste passes through the feeding device, is crushed in the closed automatic crushing device, and then enters the high-mix sterilization chamber for high-temperature steam treatment. In order to prevent secondary pollution, the equipment of the present invention is equipped with an exhaust filter. Since medical waste will cause a large amount of VOC to be produced, a VOC chemical oxidation device is also installed after the exhaust gas filter; finally, a deodorization device is also installed to improve the operating environment.

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Abstract

The present invention relates to safe concentrated medical waste treating process and apparatus with high temperature steam. The treating process includes high temperature steam treatment of crushed medical waste, and purifying treatment of the treated tail gas. The treating apparatus includes a feeding set, a sealed automatic crushing set, a high temperature sterilizing chamber and a tail gas purifying set connected successively. The present invention ensures the medical waste treating effect in high temperature steam, has the economic performance of treatment considered at the same time, and adopts the heat resisting thermophilic fat bacillus spore as the indicating bacteria to reach the sterilizing rate not lower than 99.999 %.

Description

technical field [0001] The invention relates to a waste treatment method and device, in particular, a medical waste disposal method and device. technical background [0002] Medical waste contains many harmful pathogens, and its viruses and germs are often the source of disease transmission. Therefore, improper disposal of medical waste may cause disease transmission. In recent years, the government has paid more and more attention to the safe disposal of medical waste. The State Council promulgated the "Regulations on the Management of Medical Waste" in 2003. Technical Specifications for Centralized Waste Disposal, the promulgated laws, regulations or norms have made strict regulations on the classification, definition, collection, transportation, storage, disposal and supervision of medical waste, in order to strengthen the management of medical waste disposal. Judging from the current technologies for disposing of medical waste abroad, there are mainly two categories: in...

Claims

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Application Information

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IPC IPC(8): A61L11/00
Inventor 吴桐
Owner 吴桐
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