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:
Aug. 04, 2026
Filed:
Sep. 26, 2021
Cisdi Research & Development Co., Ltd., Chongqing, CN;
Yunfeng MA, Chongqing, CN;
Shusheng Wang, Chongqing, CN;
Jun Zheng, Chongqing, CN;
Wenjun Dai, Chongqing, CN;
Abstract
The invention relates to an improved blast furnace distributing device with a nitrogen sealing structure which belongs to the field of blast furnace. The nitrogen sealing structure is divided into two functional areas on whole structure, wherein a labyrinth structure is arranged at position close to lower side of a blast furnace, which can achieve dustproof and dust falling effects, increase gas pressure resistance loss inside a furnace, and provide favorable conditions for sealing of an upper floating ring; the floating rings which are matched with one another are arranged at position close to upper side of the distributing device can be kept in contact all time through self-adaption in operation process, and achieve tighter combination through mutual running-in, so the structure does not require high-precision manufacturing cost. By keeping upper pressure higher than blast furnace pressure, the invention can be guaranteed that the floating rings have certain sealing pressing force so as to achieve better sealing effect.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile