Title:
ZERO-POWER-CONSUMPTION MULTI-PATH CARBON DIOXIDE RECOVERY DEVICE IN COAL MINE AIR SHAFT
Document Type and Number:
WIPO Patent Application WO/2023/109234
Kind Code:
A1
Abstract:
Disclosed is a zero-power-consumption multi-path carbon dioxide recovery device in a coal mine air shaft, the device comprising an air shaft (1), dust cleaners (6), gas collection chambers (4) and carbon dioxide condensation mechanisms (2), wherein a peripheral side of a side wall of the air shaft (1) is provided with a plurality of adjustable variable-speed air ducts (3) in communication with the air shaft; and each adjustable variable-speed air duct (3) has a diameter gradually decreasing from an air inlet to an air outlet thereof, the dust cleaner (6) is connected to an air outlet of the adjustable variable-speed air duct (3), the gas collection chamber (4) is connected to the dust cleaner (6), and the carbon dioxide condensation mechanism (2) is connected to the gas collection chamber (4) for condensing the received dried airflow, so that carbon dioxide in the airflow is condensed into liquid carbon dioxide. The airflow is initially cooled by means of the adjustable variable-speed air duct and then sequentially cooled by means of the dust cleaner and the gas collection chamber, and then the dried airflow after three times of cooling is introduced into the carbon dioxide condensation mechanism for condensation, so that the condensation effect of carbon dioxide is improved.
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Inventors:
XU YAJUN (CN)
PANG XIAOLIANG (CN)
PANG DESHENG (CN)
MA YING (CN)
PANG XIAOLIANG (CN)
PANG DESHENG (CN)
MA YING (CN)
Application Number:
PCT/CN2022/120247
Publication Date:
June 22, 2023
Filing Date:
September 21, 2022
Export Citation:
Assignee:
TIANDI SCIENCE & TECH CO LTD (CN)
CCTEG COAL MINING RES INSTITUTE (CN)
CCTEG COAL MINING RES INSTITUTE (CN)
International Classes:
E21F1/00
Domestic Patent References:
| WO2021206564A1 | 2021-10-14 | |||
| WO2016088002A1 | 2016-06-09 |
Foreign References:
| CN114294039A | 2022-04-08 | |||
| CN108543399A | 2018-09-18 | |||
| CN209735283U | 2019-12-06 |
Attorney, Agent or Firm:
TSINGYIHUA INTELLECTUAL PROPERTY LLC (CN)
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