In-situ treatment method for boiler coking

• Main Authors: LI XIAOLONG, WU JUNYI, SONG ZHENGFA, YANG YANCHAO, GUO MINZHONG, MENG HAISHENG, YAN JUN, CHOI JUNG-JUNG, WEI JIANHUA, HONG QIJUN
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2024
• Subjects: BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; FLUES; HEATING; LIGHTING; MECHANICAL ENGINEERING; REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES; WEAPONS

The invention belongs to the technical field of decoking, and particularly relates to an in-situ treatment method for boiler coking. The method comprises the following steps: 1) preparing a spraying material, and mixing the spraying material with an acid solution and a dispersing agent to obtain a pasty spraying material; (2) a hearth is polished, and pasty spraying materials are evenly sprayed on the surface of the hearth; and 3) adding fuel into the hearth, igniting the fuel to carry out combustion heat treatment on the fuel, and cooling to finish the treatment. Under the condition that the furnace body is not disassembled, effective decoking treatment can be carried out on the coking position, especially the outlet, of the hearth, the decoking rate is high, an anti-coking treatment layer is formed on the surface of the hearth after decoking, and the anti-coking effect can be kept for a long time. 本发明属于除焦技术领域，尤其涉及一种锅炉结焦的原位处理方法。所述方法包括：1）配制喷料，将喷料与酸液和分散剂混合，得到糊状喷料；2）打磨炉膛，在炉膛表面均匀喷涂糊状喷料；3）于炉膛中加入燃料，点燃燃料使得燃料进行燃烧热处理