Respiration air purifying device for mining
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QINGDAO TECHNOLOGICAL UNIVERSITY
- Publication Date
- 2018-07-27
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Abstract
Description
technical field
[0001] The invention relates to the technical field of resources and environment, in particular to a breathing air purification device for mining. Background technique
[0002] Production dust is the main harmful factor in underground mines. Many production processes and procedures, such as drilling, blasting, ore dropping, rock loading, transportation, etc., can generate a lot of dust. Workers who inhale this kind of dust for a long time may develop silicosis, coal lung or mixed pneumoconiosis. Methane is often present in mine air, and its main component is methane. In addition, there are harmful gases such as carbon monoxide, nitrogen oxides and hydrogen sulfide. At present, 70% of pneumoconiosis patients in the world are in my country, and the number of deaths from mine pneumoconiosis in my country exceeds the number of deaths due to work. Mine dust concentration is high, the pass rate of dust concentration in underground mines is only 40%-60%, and in ...