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Summary:Control Of Waste Dosing In Cement Rotary Kiln Wastes that are prohibited from co-processing in cement rotary kiln are mainly based on their possible impact on the normal production operation of cement systems, the quality of cement …

Control Of Waste Dosing In Cement Rotary Kiln

Wastes that are prohibited from co-processing in cement rotary kiln are mainly based on their possible impact on the normal production operation of cement systems, the quality of cement products, exhaust emissions from exhaust pipes, and uncontrollable risks.

Explosive And Reactive Waste

Explosive waste and reactive waste may have uncontrolled explosion and violent reaction risks during collection, transportation, storage and pretreatment, which may cause harm to operators. If an explosion or violent reaction occurs in the cement rotary kiln, The cement production system has a big impact. Therefore, explosive and reactive hazardous wastes are prohibited from entering the cement rotary kiln for co-disposal. These wastes include waste sludge generated from explosives, pyrotechnics and fireworks products manufacturing industries, waste activated carbon, metal surface treatment and heat treatment. Inorganic cyanide waste, etc.

Radioactive Waste

Radioactive waste should follow special nuclear waste laws and regulations and can be disposed of by specific licensing regulations. If placed in a cement rotary kiln for co-processing, it will cause uncontrollable or unknown risks to the normal operation of cement production, the quality of cement products, and the personal safety of operators. Therefore, such wastes should be prohibited from entering the co-processing of cement rotary kiln. Radioactive waste mainly includes nuclear fuel production processes, reactor operation processes, nuclear fuel reprocessing, nuclear industry production and testing, and wastes generated by departmental schools, research institutes, etc. using radioactive materials.

Unknown Characteristics And Unidentified Waste

Due to its unknownness and uncertainty, such wastes will bring uncontrollable risks to the stable operation of cement production systems, and will also lead to unstable quality of cement products, excessive emissions and occupational health hazards. Before signing a disposal contract with a solid waste production enterprise, the cement enterprise shall evaluate the waste category to see whether it is prohibited to enter the kiln category, whether the hazardous waste category meets the category requirements of the hazardous waste business license, and the personnel health during the collaborative disposal process. And whether environmental safety risks can be effectively controlled, etc.

In addition, sampling and characterization of solid waste to be co-disposed should be performed.

Solid Waste Analysis Parameters

According to the analysis and test results, it is judged whether the hazardous waste category is suitable for co-processing in cement rotary kiln, strictly control the dosage of harmful elements on the basis of category compliance, or accelerate the harmful elements in hazardous waste through appropriate pretreatment methods. The rate is controlled within a reasonable range to avoid the occurrence of excessive smoke emission and crust blockage.

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