The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 20, 2023
Filed:
Apr. 14, 2017
Cisdi Engineering Co., Ltd., Chongqing, CN;
Qiming Huang, Chongqing, CN;
Cunzhen Tan, Chongqing, CN;
Zhan Gao, Chongqing, CN;
Weizhi Shi, Chongqing, CN;
Yuchuan Zhang, Chongqing, CN;
CISDI Engineering Co., Ltd., Chongqing, CN;
Abstract
A sealed feeder device utilized in an electric arc furnace (), and a flue gas and temperature control method. The sealed feeder device comprises a sealed feeding chute () having an outlet sealedly communicating with a side wall of the electric arc furnace (), and a material blocking sealed arc-shaped door () disposed in the sealed feeding chute (). The material blocking sealed arc-shaped door () separates the sealed feeding chute () into a cold steel scrap storage chamber () and a material feeding and dedusting chamber (), and is operated by a driving mechanism () to separate or connect the cold steel scrap storage chamber () and the material feeding and dedusting chamber (). The method comprises: adopting the feeder device to divide the flue gas of the electric arc furnace () into two paths, and controlling, by a flue gas adjustment device (), a ratio of a flue gas flow from a flow-splitting dust removal pipe () to that from a dust removal pipe () to obtain a required flue gas mixture temperature.