A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Method for harmlessly utilizing cyanidation tailings
The invention provides a harmless utilization method of cyanidation tailings, and belongs to the field of cyanidation tailings solid waste resource utilization, cyanidation tailings are used as a main raw material, municipal sludge, fly ash and a purifying agent are matched, and after mixing and roasting (in an oxygen-free atmosphere), harmless lightweight aggregate meeting the standard is obtained. According to the method, the inert gas serves as the protective atmosphere, anaerobic pyrolysis is kept in the whole roasting process, hydrocarbon gas generated in the reaction process is beneficial to formation of pores in the lightweight aggregate, and the collapse degree of the generated pores can be reduced; in this way, the release degree of harmful substances in the cyanidation tailings in the environment is effectively reduced, and pollution to the environment is reduced; in addition, valuable building materials are produced, and waste recycling is achieved. A new solution is provided for treatment of the cyanidation tailings, and development of the environmental protection industry is promoted.
本申请提供了一种氰化尾渣无害化利用的方法，属于氰化尾渣固废资源化利用领域，其中，以氰化尾渣为主要原料，并配以市政污泥、粉煤灰、净化剂，经混合、焙烧(无氧气氛)后，得到符合标准的无害化的轻集料。本申请通过以惰性气体作为保护性气氛，让整个焙烧过程保持无氧热解，反应过程中生成的烃类气体有利于轻集料中气孔的形成，可以减少已生成的孔隙坍塌的程度；如此不仅有效地减少了氰化尾渣中有害物质的在环境中的释放程度，降低了对环境的污染；而且生产出了有价值的建筑材料，实现了废物的资源化。本申请为氰化尾渣的处理提供了一种新的解决方案，有助于推动环保产业的发展。
Method for harmlessly utilizing cyanidation tailings
The invention provides a harmless utilization method of cyanidation tailings, and belongs to the field of cyanidation tailings solid waste resource utilization, cyanidation tailings are used as a main raw material, municipal sludge, fly ash and a purifying agent are matched, and after mixing and roasting (in an oxygen-free atmosphere), harmless lightweight aggregate meeting the standard is obtained. According to the method, the inert gas serves as the protective atmosphere, anaerobic pyrolysis is kept in the whole roasting process, hydrocarbon gas generated in the reaction process is beneficial to formation of pores in the lightweight aggregate, and the collapse degree of the generated pores can be reduced; in this way, the release degree of harmful substances in the cyanidation tailings in the environment is effectively reduced, and pollution to the environment is reduced; in addition, valuable building materials are produced, and waste recycling is achieved. A new solution is provided for treatment of the cyanidation tailings, and development of the environmental protection industry is promoted.
本申请提供了一种氰化尾渣无害化利用的方法，属于氰化尾渣固废资源化利用领域，其中，以氰化尾渣为主要原料，并配以市政污泥、粉煤灰、净化剂，经混合、焙烧(无氧气氛)后，得到符合标准的无害化的轻集料。本申请通过以惰性气体作为保护性气氛，让整个焙烧过程保持无氧热解，反应过程中生成的烃类气体有利于轻集料中气孔的形成，可以减少已生成的孔隙坍塌的程度；如此不仅有效地减少了氰化尾渣中有害物质的在环境中的释放程度，降低了对环境的污染；而且生产出了有价值的建筑材料，实现了废物的资源化。本申请为氰化尾渣的处理提供了一种新的解决方案，有助于推动环保产业的发展。
Method for harmlessly utilizing cyanidation tailings
氰化尾渣无害化利用的方法
CHENG WEIFENG (author) / ZHAI JUBIN (author) / LAN XINHUI (author) / CHI CHONGZHE (author) / CUI CHONGLONG (author)
2024-12-27
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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