矿产保护与利用2025，Vol.45Issue(4)：29-38,10.DOI:10.13779/j.cnki.issn1001-0076.2025.04.002
煤型铀矿床流态化协同开采工艺研究
Research on Fluidization Synergetic Mining Technology of Uranium Bearing Coal Deposit
摘要
Abstract
Uranium-bearing coal deposits are an important unconventional uranium resource with abundant reserves in China,which has not been fully exploited for a long time.In order to realize the cooperative mining of coal and uranium in uranium-bearing coal deposits,we did an analysis of the occurrence characteristics of uranium-bearing coal deposits in China and the problems in the traditional mining method.We then proposed a fluidization synergetic mining technology for these deposits,and clarified the urgent problems that need to be solved in the research of new technology.Uranium-bearing coal deposits are widely distributed in China,mainly occurring in the coal measures of Carboniferous Permian,Cenozoic and Jurassic.The carrier coal reservoir of coal type uranium is mainly composed of low rank stone coal,lignite and long flame coal,and the uranium in coal is mainly organic.The ore body is characterized as small,poor and scattered,and the engineering geological conditions are generally complex.The traditional comprehensive utilization mode of mining-power generation-heating-uranium extraction has many problems,such as poor economic benefits,high tunneling rate,difficult selection of mining technology,difficult maintenance of surrounding rock,high risk and poor working environment.For this reason,the technologies of coal underground mining,in-situ leaching uranium mining and groundwater remediation were integrated,and the fluidization synergetic mining technology of uranium-bearing coal deposits was proposed,and the process system and process flow were constructed.In order to give consideration to the recovery rate of coal and uranium resources,the underground gasification temperature should be controlled below 1 000℃,and acid leaching solution should be used to extract uranium.Taking the two basic types of underground gasification furnace_the most common U-type gasifier and the blind well gasifier as examples,the specific implementation process of the new process was described.Combined with the characteristics of the new process,24 key indicators were selected from 5 aspects,such as geological structure,hydrogeology,ore body occurrence conditions,mineral characteristics,and mining technical conditions,and a preliminary evaluation indicator system framework of fluidization collaborative mining site selection was established.This technology enables the safe,efficient and environmentally friendly mining of uranium-bearing coal deposits,which is of great significance to alleviate the contradiction between supply and demand of natural uranium and promote the comprehensive utilization of resources.关键词
煤型铀矿床/流态化开采/煤炭地下气化/原地浸出采铀/协同开采/资源综合利用Key words
uranium bearing coal deposit/fluidization mining/underground coal gasification(UCG)/in situ leaching of uranium/synergetic mining/comprehensive utilization of resources分类
矿业与冶金引用本文复制引用
黄温钢,王红海,王国志,舒凑先,张绍韡,鲁馨,霍亮,张麟熹,邹融..煤型铀矿床流态化协同开采工艺研究[J].矿产保护与利用,2025,45(4):29-38,10.基金项目
国家自然科学基金项目(52364007) （52364007）
煤炭精细勘探与智能开发全国重点实验室自主课题(SKLCRSM23X004) （SKLCRSM23X004）
煤与煤系气地质山西省重点实验室开放基金项目(MDZ202103) （MDZ202103）
江西省自然科学基金项目(20202BABL214021) （20202BABL214021）
