Patents by Inventor Baiquan Lin

Baiquan Lin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190145260
    Abstract: A method for constructing networked preferential gas migration pathways and diverting and extracting gas. The method proposes that a fracture generation hole, a fracture guidance and development hole, a lateral rupture hole, and a fracture connection hole are respectively constructed in a roof in roadways on two sides of a working face in advance of an advance stress change area. Artificial guided fractures are actively constructed and formed inside the hard roof. Under a mining-induced stress effect, the artificial guided fractures and mining-induced fractures intersect with and are connected to each other to form networked preferential gas migration pathways. Meanwhile, boreholes for artificial guided fractures accelerate roof fracturing to form a rupture bed separation fracture area in a roof. Gas flows and migrates in a timely and efficient manner along networked fracture pathways and concentrates in the rupture bed separation fracture area in the roof.
    Type: Application
    Filed: December 1, 2017
    Publication date: May 16, 2019
    Applicant: China University of Mining and Technology
    Inventors: Baiquan LIN, Tong LIU, Ting LIU, Wei YANG, He LI, Rui WANG, Zheng WANG
  • Publication number: 20190145259
    Abstract: A method for stepwise construction of a preferential gas migration pathway at a stope in a coal seam. First, a gas migration pathway is preliminarily formed at a stope depending on a mining effect of mining in a first mined seam. construction and stabilization method of gob-side entry retaining in deep strata, and a method of manual-guided pre-fracturing boreholes are then used to perform active construction respectively in external space and the outside of coal-rock mass to form preferential gas migration pathways. Eventually, under the effect of mining-induced stress, a system of preferential gas migration pathways connected to each other at the stope is further formed.
    Type: Application
    Filed: December 1, 2017
    Publication date: May 16, 2019
    Applicant: China University of Mining and Technology
    Inventors: Baiquan LIN, Tong LIU, Ting LIU, Wei YANG, He LI, Zhanbo HUANG, Rui WANG, Yihan WANG
  • Publication number: 20190064403
    Abstract: A transflective and non-rectangular display panel and a display device are provided. The non-rectangular display panel includes a display region, a non-display region surrounding the display region, multiple pixels including multiple sub pixels, and a light shielding layer. There is a first boundary between the display region and the non-display region, and a region surrounded by the first boundary and the display region is non-rectangular. Each of the multiple pixels includes at least three of the multiple sub pixels. An open region of each of the multiple sub pixels has a transmissive region and a reflective region. The multiple pixels include normal pixels in the display region and abnormal pixels passed through by the first boundary. In each of the abnormal pixels, each of the transmissive region and the reflective region is partially blocked by the light shielding layer and partially emits light therefrom.
    Type: Application
    Filed: October 30, 2018
    Publication date: February 28, 2019
    Applicant: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Baiquan LIN, Kerui XI, Ming XIE, Huanxi Zhang, Min ZHANG
  • Patent number: 10060238
    Abstract: A method for combining integrated drilling and slotting with oscillating thermal injection to enhance coalbed gas extraction, applicable to managing gas extraction from microporous, low-permeability, high-adsorption coal seam areas. A number of slots are formed within a thermal injection/extraction borehole by means of integrated drilling and slotting technology; a steam generator, is then used to three high-pressure, cyclically temperature-changing steam into said borehole; the steam passing through a spinning, oscillating-pulse jet nozzle forms an oscillating superheated steam, heating the coal body. The present method overcomes the limitations of simple permeability-increasing techniques, the slotting by means of hydraulic.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: August 28, 2018
    Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
    Inventors: Baiquan Lin, Chang Guo, Quanle Zou, Ting Liu, Chuanjie Zhu, Jia Kong, Fazhi Yan, Hao Yao, Yidu Hong
  • Publication number: 20180209259
    Abstract: A gas extraction method in which high energy gas fracturing technology is used to form a fracture network in a thermal injection borehole. Then high-pressure, cyclically temperature-changing steam is injected into the borehole using a spinning oscillating-pulse jet nozzle to form oscillating superheated steam, alternatingly impacting and heating the coal body. The high energy gas forms a fracture network that provides channels for passage of the superheated steam, while oscillating changes in steam temperature and pressure also promote crack propagation and perforation of the coal body; the combined effect of alternation of the two enhances gas desorption and extraction efficiency.
    Type: Application
    Filed: December 22, 2015
    Publication date: July 26, 2018
    Inventors: Baiquan LIN, Quanle Zou, Ting Liu, Chang Guo, Chuanjie Zhu, Jia Kong, Fazhi Yan, Hao Yao, Yidou Hong
  • Publication number: 20180209255
    Abstract: A method for combining integrated drilling and slotting with oscillating thermal injection to enhance coalbed gas extraction, applicable to managing gas extraction from microporous, low-permeability, high-adsorption coal seam areas. A number of slots are formed within a thermal injection/extraction borehole by means of integrated drilling and slotting technology; a steam generator, is then used to three high-pressure, cyclically temperature-changing steam into said borehole; the steam passing through a spinning, oscillating-pulse jet nozzle forms an oscillating superheated steam, heating the coal body. The present method overcomes the limitations of simple permeability-increasing techniques, the slotting by means of hydraulic.
    Type: Application
    Filed: December 22, 2015
    Publication date: July 26, 2018
    Inventors: Baiquan LIN, Chang GUO, Quanle ZOU, Ting LIU, Chuanjie ZHU, Jia KONG, Fazhi YAN, Hao YAO, Yidu HONG
  • Patent number: 10022668
    Abstract: Disclosed is a self-regenerative integrated device for the synergetic oxidation of low-concentration gas and ventilation gas in a coal mine. The integrated device comprises a metal shell (5). A honeycomb ceramic oxidation bed (13) is arranged within the metal shell (5) and divided into a regenerative section (40) and an oxidation section (41) by a heat exchange chamber (14). A first cavity between the regenerative section (40) and the inner wall of the metal shell (5) is divided into a first inlet chamber (6) and an exhaust chamber (8) by an inlet partition plate (7), a second cavity between the oxidation section (41) and the inner wall of the metal shell (5) is divided into a second inlet chamber (22) and a mixing chamber (20) by a partition plate (21) for averaging gas, and a plurality of gas nozzles (28) are provided on the partition plate (21) for averaging gas.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: July 17, 2018
    Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
    Inventors: Baiquan Lin, Qingzhao Li
  • Publication number: 20180197458
    Abstract: Disclosed are a method for driving a pixel circuit, a display panel and a display device. The pixel circuit includes: a data write module, a drive transistor, a hold module and a light-emitting element. The method comprises, in a time period for a frame of display: a data writing stage in which a data signal is written by the data write module into a gate electrode of the drive transistor; a light-emitting stage in which a voltage on the gate electrode of the drive transistor is held by the hold module, the drive transistor supplies a drive current to the light-emitting element, and the light-emitting element emits light in response to the drive current; and a cut-off stage in which the drive transistor operates in a full cut-off region.
    Type: Application
    Filed: March 5, 2018
    Publication date: July 12, 2018
    Inventors: Kerui XI, Tingting CUI, Baiquan LIN, Junting OUYANG, Zhonglan CAI
  • Publication number: 20180197476
    Abstract: Provided are a display panel and a display device. A pixel circuit in the disclosed display panel includes a driving module, a data writing module, a storage module, and at least one control module. The data writing module is configured to write a data signal into a control terminal of the driving module. The storage module is electrically connected to the control terminal of the driving module for maintaining a voltage on the control terminal of the driving module in an emit-lighting phase. The control module is electrically connected to the control terminal of the driving module for writing a signal into the control terminal of the driving module prior to the light-emitting stage. At least one hollowed structure is provided on the continuous gate structure of the control transistor of the control module. At least one channel's width-to-length ratio is different from others among the overlapping portions' channels.
    Type: Application
    Filed: March 9, 2018
    Publication date: July 12, 2018
    Inventors: Kerui XI, Tingting CUI, Baiquan LIN, Junting OUYANG, Ruiyuan ZHOU
  • Publication number: 20180166021
    Abstract: Disclosed are a pixel circuit, a display panel and a drive method for a pixel circuit. The pixel circuit comprises: a light-emitting element, configured for emitting light in response to a drive current; a drive transistor, configured for providing the drive current to the light-emitting element; a data write device, configured for writing a data signal to a gate electrode of the drive transistor; a hold device, electrically connected with the gate electrode of the drive transistor and configured for holding a voltage on the gate electrode of the drive transistor in a light-emitting stage; and a control device, electrically connected with the gate electrode of the drive transistor and configured for controlling the drive transistor to operate in a full cut-off region in a cut-off stage, wherein, the cut-off stage precedes the light-emitting stage.
    Type: Application
    Filed: February 7, 2018
    Publication date: June 14, 2018
    Applicant: SHANGHAI TIANMA AM-OLED CO., LTD.
    Inventors: Kerui XI, Junting OUYANG, Baiquan LIN, Tingting CUI
  • Publication number: 20180112505
    Abstract: A method for permeability improvement for a downhole coal seam by directional fracturing with pulsed detonation waves, which is applicable to gas control in coal seam areas with high gas concentration and low air permeability. The permeability improvement method is as follows: first, drilling a pulsed detonation borehole and pulsed detonation guide boreholes from a coal roadway to a coal seam respectively; then, pushing a positive electrode connected to a positive output side of an explosion-proof high-voltage electrical pulse generator to the bottom of the pulsed detonation borehole and pushing a negative electrode connected to a negative output side of the explosion-proof high-voltage electrical pulse generator to the bottom of the pulsed detonation guide borehole; connecting the pulsed detonation borehole and the pulsed detonation guide boreholes to an extraction pipeline for gas extraction, after electrical pulsed detonation fracturing for the coal seam is carried out.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 26, 2018
    Inventors: Baiquan LIN, Fazhi YAN, Chuanjie ZHU, Chang GUO, Quanle ZOU, Ting LIU, Yidu HONG, Hao YAO
  • Patent number: 9951597
    Abstract: A method for permeability improvement for a downhole coal seam by directional fracturing with pulsed detonation waves, which is applicable to gas control in coal seam areas with high gas concentration and low air permeability. The permeability improvement method is as follows: first, drilling a pulsed detonation borehole and pulsed detonation guide boreholes from a coal roadway to a coal seam respectively; then, pushing a positive electrode connected to a positive output side of an explosion-proof high-voltage electrical pulse generator to the bottom of the pulsed detonation borehole and pushing a negative electrode connected to a negative output side of the explosion-proof high-voltage electrical pulse generator to the bottom of the pulsed detonation guide borehole; connecting the pulsed detonation borehole and the pulsed detonation guide boreholes to an extraction pipeline for gas extraction, after electrical pulsed detonation fracturing for the coal seam is carried out.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: April 24, 2018
    Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
    Inventors: Baiquan Lin, Fazhi Yan, Chuanjie Zhu, Chang Guo, Quanle Zou, Ting Liu, Yidu Hong, Hao Yao
  • Patent number: 9869168
    Abstract: A method for thermal-displacement-type strengthened extraction in a drill hole, suitable for efficient gas extraction in a coal mine, the method comprising the following steps: arranging an extraction drill hole and a thermal displacement drill hole at intervals in a coal seam; continuously heating coal in the drill hole to form a stable temperature field by using a heat pipe; and significantly reducing gas adsorption potential by utilizing a heat effect, prompting gas desorption, and strengthening gas extraction. The method enlarges a range of effective pressure relief influence of a single hole, increases an extraction efficiency of gas in a coal seam by more than 40%, is safe, reliable and low-cost, and is easy to operate, saving both time and labor.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: January 16, 2018
    Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
    Inventors: Baiquan Lin, Yidou Hong, Chuanjie Zhu, Hao Yao
  • Publication number: 20170152734
    Abstract: A method for thermal-displacement-type strengthened extraction in a drill hole, suitable for efficient gas extraction in a coal mine, the method comprising the following steps: arranging an extraction drill hole and a thermal displacement drill hole at intervals in a coal seam; continuously heating, by using a heat pipe (5), coal in the drill hole to form a stable temperature field; and significantly reducing gas adsorption potential by utilizing a heat effect, prompting gas desorption, and strengthening gas extraction. The method enlarges a range of effective pressure relief influence of a single hole, increases an extraction efficiency of gas in a coal seam by more than 40%, is safe, reliable and low-cost, and is easy to operate, and saves both time and labour.
    Type: Application
    Filed: December 21, 2015
    Publication date: June 1, 2017
    Inventors: Baiquan Lin, Yidu Hong, Chuanjie Zhu, Hao Yao
  • Publication number: 20170145794
    Abstract: A method for combining integrated drilling, flushing and slotting with thermal injection to enhance coalbed gas extraction, applicable to managing gas extraction from microporous, low-permeability, high-adsorption coalbed areas. A gas extraction borehole is drilled within a certain distance of a predetermined drilling, flushing and slotting borehole, and, once sealed, is used for gas extraction. An integrated drilling, flushing and slotting drill bit is used to sink the borehole, which is then sealed. Concentration variation in the gas extraction borehole is monitored in real time, and when concentration is below 30%, borehole is opened and high-temperature steam is injected by means of a steam generator, after which the borehole is again closed.
    Type: Application
    Filed: December 21, 2015
    Publication date: May 25, 2017
    Inventors: Baiquan Lin, Ting Liu, Quanle Zou, Chang Guo, Chuanjie Zhu, Hao Yao, Fazhi Yan, Jia Kong, Yidu Hong
  • Patent number: 9605512
    Abstract: A distributed combined cooling, heating and power energy system for gas extraction in a coal mining area, which belongs to an energy system for gas production.
    Type: Grant
    Filed: January 27, 2014
    Date of Patent: March 28, 2017
    Assignee: China University of Mining and Technology
    Inventors: Baiquan Lin, Qingzhao Li
  • Patent number: 9417358
    Abstract: Disclosed in the invention is a multi-information coupling prediction method of coal and gas outburst danger, which is achieved by establishing a multi-index coupling prediction model to detect indexes including original gas pressure of a coal layer, the original rock stress, the critical burst gas pressure of a coal sample, the mechanical performance of coal body, the exploit influence, the drilling cutting gas desorption index, the drilling cutting quantity index and the like, therefore to coupling predict the coal and gas outburst danger. By the multi-information coupling prediction method, the information of the coal and gas outburst danger can be fully complemented; the gas and crustal stress outburst danger prediction is carried out; the defects of insufficient complementation information of a single-index and inaccurate prediction are overcome; and the accuracy of the coal and gas outburst danger prediction is improved.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: August 16, 2016
    Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
    Inventors: Baiquan Lin, Wei Yang, Cheng Zhai
  • Publication number: 20160136575
    Abstract: Disclosed is a self-regenerative integrated device for the synergetic oxidation of low-concentration gas and ventilation gas in a coal mine. The integrated device comprises a metal shell (5). A honeycomb ceramic oxidation bed (13) is arranged within the metal shell (5) and divided into a regenerative section (40) and an oxidation section (41) by a heat exchange chamber (14). A first cavity between the regenerative section (40) and the inner wall of the metal shell (5) is divided into a first inlet chamber (6) and an exhaust chamber (8) by an inlet partition plate (7), a second cavity between the oxidation section (41) and the inner wall of the metal shell (5) is divided into a second inlet chamber (22) and a mixing chamber (20) by a partition plate (21) for averaging gas, and a plurality of gas nozzles (28) are provided on the partition plate (21) for averaging gas.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 19, 2016
    Inventors: Baiquan LIN, Qingzhao LI
  • Publication number: 20150159470
    Abstract: A distributed combined cooling, heating and power energy system for gas extraction in a coal mining area, which belongs to an energy system for gas production.
    Type: Application
    Filed: January 27, 2014
    Publication date: June 11, 2015
    Inventors: Baiquan Lin, Qingzhao Li
  • Publication number: 20140019047
    Abstract: Disclosed in the invention is a multi-information coupling prediction method of coal and gas outburst danger, which is achieved by establishing a multi-index coupling prediction model to detect indexes including original gas pressure of a coal layer, the original rock stress, the critical burst gas pressure of a coal sample, the mechanical performance of coal body, the exploit influence, the drilling cutting gas desorption index, the drilling cutting quantity index and the like, therefore to coupling predict the coal and gas outburst danger. By the multi-information coupling prediction method, the information of the coal and gas outburst danger can be fully complemented; the gas and crustal stress outburst danger prediction is carried out; the defects of insufficient complementation information of a single-index and inaccurate prediction are overcome; and the accuracy of the coal and gas outburst danger prediction is improved.
    Type: Application
    Filed: March 28, 2012
    Publication date: January 16, 2014
    Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
    Inventors: Baiquan Lin, Wei Yang, Cheng Zhai