Multi-functional plugging agent for coal mine and preparation method thereof

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United States of America Patent

PATENT NO 11691043
APP PUB NO 20220362599A1
SERIAL NO

17868037

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Provided is a multi-functional plugging agent for a coal mine and a preparation method thereof. The preparation method comprises: by taking Ecklonia Kurome Okam as a raw material, mixing an Ecklonia Kurome Okam suspension with phosphorus pentoxide for reaction, then performing biodegradation to obtain an Ecklonia Kurome Okam biological extract, adding urea for neutralization, mixing a neutralization product with an inorganic catalyst and melamine for reaction to obtain a bio-based plugging synergist solution, finally cooling the bio-based plugging synergist solution, and mixing the cooled bio-based plugging synergist solution with a certain amount of pentaerythritol and ammonium polyphosphate to obtain the multi-functional plugging agent for the coal mine based on the Ecklonia Kurome Okam biological extract. According to the invention, not only a coal crack can be effectively plugged for a long time, but also an efficient flame-retardant effect can be achieved in a complete period of coal spontaneous combustion.

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Patent Owner(s)

Patent OwnerAddress
SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY579 QIANWANGANG ROAD HUANGDAO DISTRICT QINGDAO CITY SHANDONG PROVINCE QINGDAO CITY SHANDONG PROVINCE 266590

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bai, Guangxing Qingdao, CN 2 0
Cheng, Weimin Qingdao, CN 14 11
He, Zhenglong Qingdao, CN 1 0
Hu, Xiangming Qingdao, CN 5 0
Mou, Zonglei Qingdao, CN 1 0
Wu, Mingyue Qingdao, CN 9 0
Xue, Di Qingdao, CN 23 35
Yan, Bingrui Qingdao, CN 1 0
Zhao, Yanyun Qingdao, CN 18 454

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