US 12,275,672 B2
Methods, systems for dehydrating gasification fine slags, and media thereof
Yixin Zhang, Xuzhou (CN); Jianjun Wu, Xuzhou (CN); Yangchun Xi, Xuzhou (CN); Manman Xue, Xuzhou (CN); Yan Li, Xuzhou (CN); and Fanhui Guo, Xuzhou (CN)
Assigned to CHINA UNIVERSITY OF MINING AND TECHNOLOGY, Xuzhou (CN)
Filed by CHINA UNIVERSITY OF MINING AND TECHNOLOGY, Jiangsu (CN)
Filed on Sep. 14, 2023, as Appl. No. 18/467,713.
Claims priority of application No. 202310245934.0 (CN), filed on Mar. 15, 2023.
Prior Publication US 2024/0308909 A1, Sep. 19, 2024
Int. Cl. C04B 18/06 (2006.01); C01B 32/05 (2017.01); C02F 1/00 (2023.01); C02F 11/122 (2019.01); C02F 11/13 (2019.01); C02F 11/15 (2019.01); C02F 103/34 (2006.01); C04B 5/06 (2006.01)
CPC C04B 18/065 (2013.01) [C01B 32/05 (2017.08); C02F 1/008 (2013.01); C02F 11/122 (2013.01); C02F 11/13 (2019.01); C02F 11/15 (2019.01); C04B 5/06 (2013.01); C02F 2103/34 (2013.01); C02F 2209/006 (2013.01); C02F 2209/02 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A method for dehydrating a gasification fine slag based on multi-energy field gradient processing intelligent decision, wherein the method is performed by a processor controlling a dehydration device and/or a detection device, the dehydration device includes an ultrasonically coupled vacuum dehydration device, a vibratory hot press dehydration device, and an ultrasonically coupled evaporative drying device, the detection device is configured to detect physical properties and/or chemical properties of a gasification fine slag to be dehydrated, the method comprising:
S1: for any gasification fine slag to be dehydrated, a first dehydration mode is selected first:
S11: the detection device is controlled to determine a moisture content W, an average particle size D, a pore volume V, and a dry basis ash content Ash of the gasification fine slag to be dehydrated, and a judgmental characteristic index x of the dehydration mode is calculated based on a detection result obtained from the detection device through the following formula:

OG Complex Work Unit Math
S12: a corresponding first dehydration mode is selected from a preset database based on the calculated judgmental characteristic index x of the dehydration mode, wherein the preset database being stored in the processor and/or other storage devices to which the processor is communicatively connected, and the preset database includes at least one or more preset dehydration mode:
when x>7, the gasification fine slag enters the ultrasonically coupled vacuum dehydration device for dehydration;
when 7≥x>3, the gasification fine slag enters the vibratory hot press dehydration device for dehydration;
when x≤3, the gasification fine slag enters the ultrasonically coupled evaporative drying device for dehydration;
S2: after a first dehydration process is completed, the detection device is controlled to detect a residual moisture content of the gasification fine slag and compare the residual moisture content of the gasification fine slag with a set dehydration value, and if dehydration requirements are satisfied, a dehydration task is ended; otherwise, the judgmental characteristic index x of the dehydration mode is calculated again, and the dehydration mode is selected according to a condition of S12 to continue dehydrating until the gasification fine slag satisfies the dehydration requirements.