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Engineering Experiment Research of the Quantity Theoretical Orthogonal Design Optimal Method for the Coal-seamInjection Parameters

Qin Shuyu,Qin Weihan

Strategic Study of CAE 2003, Volume 5, Issue 10, Pages 52-55

Abstract:

To apply the orthogonal design to the optimization of the coal-seam injection technical parameters' combination is a better method that realizes the best effect of injection for the coal-seam withBut with this method, its effect cannot definitely satisfy the injection engineering requirement forthe coal-seam with changing geological conditions.For this reason, in view of the coal-seam with unsteady geological factors and the characteristic that

Keywords： quantity theory technical parameter orthogonal design coal-seam injection experimental study

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Full-mechanized caving mining technology of extremely thick and hard coal-seam with hard roof in shallow

Zhang Zhongwen,Wu Jinan

Strategic Study of CAE 2011, Volume 13, Issue 11, Pages 107-112

Abstract:

Top-coal caving difficulty degree and rational mining method were analyzedby theoretical method on the basis of the 4th coal-seam condition of Pingshuo Mining area.For improving top-coal caving degree, the parameters of full-mechanized caving mining face were obtainedratio would be realized by lengthening mining face and adding mining height in shallow buried hard coal-seam

Keywords： shallow buried depth hard coal-seam with hard roof top-coal caving difficulty degree full-mechanized

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A review on transport of coal seam gas and its impact on coalbed methane recovery

Geoff G.X. WANG, Xiaodong ZHANG, Xiaorong WEI, Xuehai FU, Bo JIANG, Yong QIN

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 2, Pages 139-161 doi: 10.1007/s11705-010-0527-4

Abstract: This paper presents a summary review on mass transport of coal seam gas (CSG) in coal associated with

Keywords： mass transport coal seam gas (CSG) coalbed methane (CBM) coal CBM recovery carbon dioxide storage

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evaluation on elevation of coalbed methane recovery ratio by injecting and burying CO₂ for 3# coalseam of north section of Shizhuang, Qingshui Basin, Shanxi

Ye Jianping,Zhang Bing,Sam Wong

Strategic Study of CAE 2012, Volume 14, Issue 2, Pages 38-44

Abstract: ="text-align: justify;">By conducting geological and engineering evaluation on deep coalbed methane injectionThe gas production after injection is 2.45 times of that before injection as shown by on-site test.Under pressure lower than rupturing pressure for coal seam, 20 of CO2 can be injected smoothly dailyAfter injection of CO2, the coal rock swells and the local coal seam get less penetration ratio, whichin the target coal seam.

Keywords： Qingshui Basin Shanxi CO₂ injection coalbed methane recovery ratio

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Study on Coal Seam Roof Gas Drainage from the Strike of Annular Fracture Areas by the Long Drill Method

Liu Zegong,Yuan Liang,Dai Guanglong,Shi Biming,Lu Ping,Tu Min

Strategic Study of CAE 2004, Volume 6, Issue 5, Pages 32-38

Abstract:

Gas in working faces is mainly produced in the destressing and desorption process of the coal bed,The coal beds are too soft to carry out bedding drilling and draw gas effectively.Mining in coal beds with gas of high conentration and low permeability and gas suction can be operatodfrom roof fracture areas will not flow into upper corners, so the technically drilling problem in soft coal

Keywords： coal seam similar material experiment numerical simulation gas drainage annular fracture area

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Discussion on the Content of Coal Bed Gas Predicted by Indirect Method

Xian Xuefu,Gu Min

Strategic Study of CAE 2006, Volume 8, Issue 8, Pages 15-22

Abstract:

Some dispute problems about the content of coal bed gas (methane) predicted by indirect method, includingthe existing status of the methane, the adsorption isotherm models for coal bed gas and their relationships, the free methane state in coal seam and the parameters for its capacity calculation, were discussed

Keywords： indirect method gas in coal seam methane methane adsorbed free methane

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An adaptive sliding mode control technology for weld seam tracking

Jie LIU,Youmin HU,Bo WU,Kaibo ZHOU,Mingfeng GE

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 1, Pages 95-101 doi: 10.1007/s11465-015-0332-3

Abstract:

A novel adaptive sliding mode control algorithm is derived to deal with seam tracking control problem

Keywords： weld seam tracking welding robotic manipulator adaptive control sliding mode control

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Coal seam roof and floor hydrogeology conditions evaluation of Pingshuo No.1 mine and measures of preventing

Zhang Zhongwen,Wu Qiang,Fu Enjun,Fan Zhenli

Strategic Study of CAE 2011, Volume 13, Issue 11, Pages 94-101

Abstract:

Aiming at water hazards menace of Pingshuo No.1 coal mine roof and floor, the paper ascertains relevant factors of coal mine water bursting on the base of analyzing the mining

Keywords： three maps method vulnerability index method water hazards of coal mine prevented measures of water

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Design and application of a novel coal-fired drum boiler using saline water in heavy oil recovery

Junping GU, Yuxin WU, Liping WU, Man ZHANG, Hairui YANG, Junfu LYU

Frontiers in Energy 2020, Volume 14, Issue 4, Pages 715-725 doi: 10.1007/s11708-020-0690-3

Abstract: In this paper, the design and operation of a novel coal-fired circulating fluidized bed (CFB) drum boilerA CFB combustion technology was used for coal firing to achieve a uniform heat transfer condition withBased on the field test, the recommended water standard for the coal-fired CFB drum boilers was determinedWith the present technology, the treated recovery wastewater can be reused in steam-injection boilers

Keywords： drum steam injection boiler natural circulation recovery wastewater staged evaporation circulating fluidized

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Three-dimensional numerical simulation for plastic injection-compression molding

Yun ZHANG, Wenjie YU, Junjie LIANG, Jianlin LANG, Dequn LI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1, Pages 74-84 doi: 10.1007/s11465-018-0490-1

Abstract:

Compared with conventional injection molding, injection-compression molding can mold optical partsIn this study, a 3D simulation method was developed for injection-compression molding.in the cavity were investigated by using the proposed simulation method and compared with those of injectionpressures at different points along the flow path is complicated rather than monotonically decreased in injection

Keywords： injection-compression molding simulation injection molding melt flow cavity pressure

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Research on the Impact of Mining in Steep Seam on Ground Struc ture

Gao Mingzhong,Wang Lieping

Strategic Study of CAE 2007, Volume 9, Issue 11, Pages 142-146

Abstract: ion in Huainan, probability-integral method is ewployed to study the for surface displacement due to coalIt is valuable of this paper to other coal mines which have similar geological and mining conditions.

Keywords： steep seam surface movement and deformation probability-integral method predictions

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density measurement for plastic injection molding via ultrasonic technology

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0714-2

Abstract: Density variation during the injection molding process directly reflects the state of plastic melt andExperiments with different process conditions are conducted, including different melt temperature, injectioni> measurement, non-destructive, high accuracy, low cost, and is of great application value for the injection

Keywords： ultrasonic measurement melt density in-situ measurement injection molding

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Economic Development Models of Gas Condensate Reservoir

Liu Tingyuan

Strategic Study of CAE 2001, Volume 3, Issue 3, Pages 85-91

Abstract: condensate reservoirs, including reinjection with 75% dry gas recycling, dumpflooding of gas, nitrogen injection, water injection, water and gas alternating injection, C〇₂ injection, etc.

Keywords： gas condensate reservoir development model gas injection nitrogen injection water injection CO ₂ injection economic

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Trend prediction technology of condition maintenance for large water injection units

Xiaoli XU, Sanpeng DENG

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 2, Pages 171-175 doi: 10.1007/s11465-009-0091-0

Abstract: Large-sized water injection units are key equipment in oilfields.maintenance costs, trend prediction technology is studied to achieve condition-based maintenance for water injectionproposed trend prediction technology can reflect the operating condition trend change of the water injection

Keywords： water injection units condition-based maintenance trend prediction

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Intelligent methods for the process parameter determination of plastic injection molding

Huang GAO, Yun ZHANG, Xundao ZHOU, Dequn LI

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 1, Pages 85-95 doi: 10.1007/s11465-018-0491-0

Abstract:

Injection molding is one of the most widely used material processing methods in producing plasticstudies and developments of the intelligent methods applied in the process parameter determination of injection

Keywords： injection molding intelligent methods process parameters optimization

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Title Author Date Type Operation

Engineering Experiment Research of the Quantity Theoretical Orthogonal Design Optimal Method for the Coal-seamInjection Parameters

Qin Shuyu,Qin Weihan

Journal Article

Full-mechanized caving mining technology of extremely thick and hard coal-seam with hard roof in shallow

Zhang Zhongwen,Wu Jinan

Journal Article

A review on transport of coal seam gas and its impact on coalbed methane recovery

Geoff G.X. WANG, Xiaodong ZHANG, Xiaorong WEI, Xuehai FU, Bo JIANG, Yong QIN

Journal Article

evaluation on elevation of coalbed methane recovery ratio by injecting and burying CO₂ for 3# coalseam of north section of Shizhuang, Qingshui Basin, Shanxi

Ye Jianping,Zhang Bing,Sam Wong

Journal Article

Study on Coal Seam Roof Gas Drainage from the Strike of Annular Fracture Areas by the Long Drill Method

Liu Zegong,Yuan Liang,Dai Guanglong,Shi Biming,Lu Ping,Tu Min

Journal Article

Discussion on the Content of Coal Bed Gas Predicted by Indirect Method

Xian Xuefu,Gu Min

Journal Article

An adaptive sliding mode control technology for weld seam tracking

Jie LIU,Youmin HU,Bo WU,Kaibo ZHOU,Mingfeng GE

Journal Article

Coal seam roof and floor hydrogeology conditions evaluation of Pingshuo No.1 mine and measures of preventing