Patents by Inventor Cunzhen Tan

Cunzhen Tan 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).

  • Patent number: 11680749
    Abstract: A sealed feeder device utilized in an electric arc furnace (1), and a flue gas and temperature control method. The sealed feeder device comprises a sealed feeding chute (5) having an outlet sealedly communicating with a side wall of the electric arc furnace (1), and a material blocking sealed arc-shaped door (3) disposed in the sealed feeding chute (5). The material blocking sealed arc-shaped door (3) separates the sealed feeding chute (5) into a cold steel scrap storage chamber (18) and a material feeding and dedusting chamber (2), and is operated by a driving mechanism (34) to separate or connect the cold steel scrap storage chamber (18) and the material feeding and dedusting chamber (2).
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: June 20, 2023
    Assignee: CISDI Engineering Co., Ltd.
    Inventors: Qiming Huang, Cunzhen Tan, Zhan Gao, Weizhi Shi, Yuchuan Zhang
  • Patent number: 11668526
    Abstract: The present invention belongs to the technical field of metallurgy, and discloses a horizontal continuous feeding preheating device and an enhanced preheating method therefor. The scheme comprises that two dust removal ports are arranged at the front and rear parts of a horizontal continuous feeding preheating duct, and the horizontal continuous feeding preheating duct is divided into an enhanced preheating area and a flue gas preheating area by the two dust removal ports arranged at the front and rear parts of the horizontal continuous feeding preheating duct; burners are installed in the enhanced preheating area, and the two dust removal ports are connected with a flue gas adjusting distributor respectively by a flue gas pipeline the steel scrap preheating efficiency of the burners and electric arc furnace flue gas is increased by controlling the flow rate and temperature of mixed flue gas.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: June 6, 2023
    Assignees: CISDI ENGINEERING CO., LTD, CISDI RESEARCH AND DEVELOPMENT CO., LTD.
    Inventors: Qiming Huang, Cunzhen Tan, Weizhi Shi, Yuchuan Zhang, Zhan Gao, Lei Al, Chunting Liu, Wei Lin, Chao Liu
  • Publication number: 20220286036
    Abstract: The present invention provides a power supply device and a power supply method for a DC electric arc furnace, wherein the power supply device comprises phase-shifting rectifier transformers, rectifying units and a regulator; through a structural design of a plurality of branches and a plurality of rectifying units at an output end of each phase-shifting rectifier transformer, and a structural design that outputs of the plurality of rectifying units are connected in parallel and then connected to a power supply short network of a DC electric arc furnace through bus bars, a current output topological structure is formed, which can provide a stable large current for one electrode assembly, and a plurality of current output topological structures can supply power to a plurality of electrode assemblies, so that requirement of a larger power supply current of the DC electric arc furnace can be satisfied; positions of top electrodes are judged and adjusted by the regulator according to real-time working parameters,
    Type: Application
    Filed: July 8, 2020
    Publication date: September 8, 2022
    Applicant: CISDI Research & Development Co., LTD
    Inventors: YuChuan Zhang, QiMing Huang, NingChuan Yang, CunZhen Tan
  • Patent number: 10928136
    Abstract: The present invention discloses a scrap steel preheating type electric arc furnace and a method for improving a heating cold region of a side wall charging electric arc furnace. This invention includes an electric arc furnace body and an inclined scrap steel preheating chamber. An included angle between the inclined scrap steel preheating chamber and a horizontal plane is 30° to 65°. Flue gas enters the inclined scrap steel preheating chamber, penetrates through the material blocking tooth rake and the scrap steel and is sucked out. The preheated scrap steel slides to a center of the electric arc furnace body along a slot bottom of the inclined scrap steel preheating chamber. The present invention overcomes a problem of lateral stacking of the side wall charging electric arc furnace, reducing impact force of the scrap steel to the device and greatly enhancing reliability of the device.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: February 23, 2021
    Assignee: CISDI ENGINEERING CO., LTD
    Inventors: Qiming Huang, Zhan Gao, Weizhi Shi, Cunzhen Tan
  • Patent number: 10858179
    Abstract: A tipping hopper includes a hopper body, hopper rotating supports and a tipping mechanism. The tipping mechanism comprises a connecting rod and a crank. One end of the connecting rod is hinged on the hopper body, and the other end is hinged with one end of the crank; and the other end of the crank is hinged on a crank rotating support through a crank rotating shaft. By optimizing a crank starting point and a crank end point, ensure hopper's position of receiving and discharging material is arranged at or near a dead point of the tipping mechanism so that the working condition of an impact force borne by a speed reducer device is optimized when the tipping hopper is charged and discharged.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: December 8, 2020
    Assignee: CISDI ENGINEERING CO., LTD.
    Inventors: Qiming Huang, Zhan Gao, Weizhi Shi, Cunzhen Tan, Yongmen Wang
  • Publication number: 20200224972
    Abstract: The present invention belongs to the technical field of metallurgy, and discloses a horizontal continuous feeding preheating device and an enhanced preheating method therefor.
    Type: Application
    Filed: August 28, 2018
    Publication date: July 16, 2020
    Applicants: CISDI ENGINEERING CO., LTD, CISDI RESEARCH AND DEVELOPMENT CO., LTD.
    Inventors: Qiming Huang, Cunzhen Tan, Weizhi Shi, Yuchuan Zhang, Zhan Gao, Lei AL, Chunting Liu, Wei Lin, Chao Liu
  • Publication number: 20200041206
    Abstract: A sealed feeder device utilized in an electric arc furnace (1), and a flue gas and temperature control method. The sealed feeder device comprises a sealed feeding chute (5) having an outlet sealedly communicating with a side wall of the electric arc furnace (1), and a material blocking sealed arc-shaped door (3) disposed in the sealed feeding chute (5). The material blocking sealed arc-shaped door (3) separates the sealed feeding chute (5) into a cold steel scrap storage chamber (18) and a material feeding and dedusting chamber (2), and is operated by a driving mechanism (34) to separate or connect the cold steel scrap storage chamber (18) and the material feeding and dedusting chamber (2).
    Type: Application
    Filed: April 14, 2017
    Publication date: February 6, 2020
    Applicant: Cisdi Engineering Co., Ltd.
    Inventors: Qiming Huang, Cunzhen Tan, Zhan Gao, Weizhi Shi, Yuchuan Zhang
  • Publication number: 20180297777
    Abstract: A tipping hopper includes a hopper body, hopper rotating supports and a tipping mechanism. The tipping mechanism comprises a connecting rod and a crank. One end of the connecting rod is hinged on the hopper body, and the other end is hinged with one end of the crank; and the other end of the crank is hinged on a crank rotating support through a crank rotating shaft. By optimizing a crank starting point and a crank end point, ensure hopper's position of receiving and discharging material is arranged at or near a dead point of the tipping mechanism so that the working condition of an impact force borne by a speed reducer device is optimized when the tipping hopper is charged and discharged.
    Type: Application
    Filed: December 21, 2017
    Publication date: October 18, 2018
    Applicant: CISDI ENGINEERING CO., LTD
    Inventors: Qiming Huang, Zhan Gao, Weizhi Shi, Cunzhen Tan, Yongmen Wang
  • Publication number: 20180195799
    Abstract: A scrap steel preheating type electric arc furnace and a method for improving a heating cold region of a side wall charging electric arc furnace are provided. The scrap steel preheating type electric arc furnace includes an electric arc furnace body and an inclined scrap steel preheating chamber. An included angle between the scrap steel preheating chamber and a horizontal plane is 30° to 65°. The scrap steel preheating chamber is connected with the electric arc furnace body. A dust removal pipe chamber is at an upper end. A material blocking tooth rake is on the scrap steel preheating chamber. A driving mechanism is below the material blocking tooth rake. Flue gas enters the scrap steel preheating chamber, penetrates through the material blocking tooth rake and the scrap steel and is sucked out by the dust removal pipe chamber.
    Type: Application
    Filed: March 5, 2018
    Publication date: July 12, 2018
    Applicant: CISDI ENGINEERING CO., LTD
    Inventors: Qiming Huang, Zhan Gao, Weizhi Shi, Cunzhen Tan