{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11940376","patent":{"patent_number":"US-11940376","title":"System and method for detecting concentration of free SiO2 in coal dust","assignee":null,"inventors":[],"filing_date":"2022-12-28T00:00:00.000Z","publication_date":"2024-03-26T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N","G01N","G01N","G01N","G01N"],"num_claims":5,"abstract":"A system for detecting a concentration of free SiO2 in coal dust includes a first sampling tube and a second sampling tube for sampling the coal dust, a three-way control valve communicated with the first sampling tube and the second sampling tube respectively, a photoacoustic spectrometry detection device communicated with the three-way control valve through a connecting pipeline, and a SiO2 reaction tube for reacting SiO2 in the coal dust; and the SiO2 reaction tube is disposed on the second sampling tube. In the present disclosure, a coal dust sampling line is convenient to change by disposing the three-way control valve, and the first sampling tube and the second sampling tube are respectively communicated with the photoacoustic spectrometry detection device, so as to perform a differential accurate detection of the reacted CO content, and to obtain the SiO2 content."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System and method for detecting concentration of free SiO2 in coal dust","description":"A system for detecting a concentration of free SiO2 in coal dust includes a first sampling tube and a second sampling tube for sampling the coal dust, a three-way control valve communicated with the f","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11940376","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-11940376","citation_suggestion":"Patentable. \"System and method for detecting concentration of free SiO2 in coal dust\" (US-11940376). https://patentable.app/patents/US-11940376","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11940376","json":"https://patentable.app/api/llm-context/US-11940376","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T04:11:20.304Z"}