Dynamics of temperature-strength changes in the immediate roof  and formation of the gasified cavity of an underground gasifier

П.  Саик; В. Лозинский; М. Берник; Д.  Климов

doi:10.51301/ejsu.2026.i1.03

Авторы

П. Саик «Бір бел, бір жол» бастамасы Қытай-Еуропа зерттеулер орталығы (BRICCES), Гуандунь мұнай-химия технологиялары университеті, Қытай
В. Лозинский Ұлттық «Днепровск политехникасы» техникалық университеті, Украина
М. Берник Ұлттық «Днепровск политехникасы» техникалық университеті, Украина
Д. Климов Ұлттық «Днепровск политехникасы» техникалық университеті, Украина

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https://doi.org/10.51301/ejsu.2026.i1.03

Ключевые слова:

көмірдің жерасты газификациясы, газсызданған кеңістік, температуралық өріс, тау жыныстары, біросьті сығуға беріктік, отты кенжар

Аннотация

Жұмыстың мақсаты – отты кенжарбойындағы химиялық реакциялар аймақтарының әсерінен тікелей төбе жыныстарының температуралық өрісі мен беріктігінің өзгеру заңдылықтарын анықтау, сондай-ақ газификацияның ұзақтығына, үрлеу қоспасын беру қысымына және көмір қабатының қалыңдығына байланысты газсызданған кеңістік ауданының уақыт бойынша қалыптасуы мен өзгеру тәуелділіктерін белгілеу. Зерттеулер отты кенжар фронтының ілгерілеуі мен төбе жыныстары деформацияларын қайта жаңғырта отырып, жерасты газификациясының зертханалық қондырғысында орындалды. Модельденген тікелей төбеде температура реакциялық арна бойымен термодатчиктер арқылы тіркелді. Украина, «Львовуголь» МК (ГП) құрамындағы «Межиричанская» шахтасының n₇^н қабатының тікелей төбесінен алынған алевролит үлгілері термиялық өңдеуден өткізіліп, KL 200/CE-Tecnotest прессінде біросьті сығуға сынақтан өткізілді. Газсызданған кеңістіктің геометриясы төбенің төмен түсуін өлшейтін реперлік датчиктер деректері, әртүрлі уақыт мезеттеріндегі контурларды графикалық визуализациялау және генераторлық газдың құрамы мен концентрациясын ескере отырып, трапециялар әдісімен ауданды есептеу негізінде анықталды. n₇^н қабатынан 0,55 м қашықтықта тотығу аймағында (0–9 м) температура шамамен 323-тен 550℃-қа дейін өсетіні, өтпелі аймақта (9–11 м) шамамен 573℃-қа жететіні, ал қалпына келтіру аймағында (11–30 м) ~200℃-қа дейін төмендейтіні анықталды. Алевролиттердің беріктігі кенжар бойымен өтпелі аймақ маңында максимумға жетіп, кейін қалпына келтіру аймағында азаяды; бұл ретте тотығу аймағы үшін экспоненциалдық, ал қалпына келтіру аймағы үшін логарифмдік тәуелділік тән. Газсызданған кеңістік ауданының газификация ұзақтығына және қабат қалыңдығына байланысты сызықтық емес, негізінен экспоненциалды түрде өзгеретіні және үрлеу қоспасын беру қысымы режимімен әрі төбе жыныстарының құлау көріністерімен байланысты екені көрсетілді. Алынған заңдылықтар жерасты газификациясының басқарылатын режимдерін негіздеу кезінде газсызданған кеңістік параметрлерін болжау және төбенің орнықтылығын бағалау үшін пайдаланылуы мүмкін.

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