Waste residue grinding, leaching, detoxifying and degassing integrated treatment system and treatment method thereof

Abstract

The invention discloses a waste residue grinding, leaching, detoxifying and degassing integrated treatment system and a treatment method thereof. The system comprises a waste residue pretreatment system, an auxiliary agent blending system, a grinding, leaching and converting system, a slurry solid-liquid separation system and a gas collection system, wherein the waste residue pretreatment system,the auxiliary agent blending system, the grinding, leaching and converting system, the slurry solid-liquid separation system and the gas collection system are sequentially connected. The treatment method comprises the steps that the pretreated waste residue and an auxiliary agent are fed into a grinding, leaching and converting machine for grinding and converting; gas generated by reaction is collected for washing and absorbing, and then is subjected to high-temperature combustion or harmless discharge; the generated slurry is subjected to solid-liquid separation treatment; and solid slag is further used for chemical raw materials or building materials. According to the system and the method, the waste residues containing harmful components such as fluorine, chlorine, sulfur, phosphorus, ammonia nitrogen, oxides, organic matter are treated; and the generated gas is recycled or harmlessly treated through grinding and leaching conversion, so that clean production is achieved.

Description

technical field [0001] The invention belongs to a waste residue detoxification and degassing treatment system and method, in particular to a waste residue milling detoxification and degassing integrated treatment system and a treatment method thereof. Background technique [0002] With the rapid development of social economy, industrial waste residues are increasing day by day, which not only puts great pressure on the urban environment, but also limits the development of the city. Therefore, from the perspective of environmental protection, the treatment of these waste residues is particularly important. At present, my country's solid waste treatment technology level is low, and the existing treatment methods of waste are mainly: resource utilization, storage and disposal, and the rest is discharged into the natural environment, directly polluting rivers, rivers and lakes. In order to build a complete set of management system, it needs repeated exploration and discussion i...

AI Technical Summary

Problems solved by technology

Due to the complex composition of waste slag, especially for a large amount of waste slag containing harmful components such as fluorine, chlorine, sulfur, phosphorus, ammonia nitrogen, and organic matter, such as BaS in barium slag, NaF in electrolytic aluminum waste slag, and NaF in ammonium alum slag and electrolytic manganese slag. Ammonium ions, etc. These waste residues can only be stockpiled or landfilled at present. As time goes by, the content of toxic substances in the sediment will continue to increase, and may cause long-term threats to drinking water sources and residents' lives. It is not conducive to the personal safety of the surrounding people, it is easy to cause conflicts between the masses and enterprises, and it is not conducive to the protection of the environment and the sustainable development of the social economy. Under the existing disposal process conditions, the treatment of these waste residues is likely to produce harmful and toxic gases, which is harmful to the environment. , human health, recycling of waste residues and comprehensive utilization of resources have serious impacts

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