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.

Date of Patent:
Sep. 17, 2019

Filed:

Dec. 20, 2016
Applicant:

China Enfi Engineering Corporation, Beijing, CN;

Inventors:

Budong Zheng, Beijing, CN;

Zhenmin Zhang, Beijing, CN;

Liyu Lu, Beijing, CN;

Kefei Cao, Beijing, CN;

Dawei Cui, Beijing, CN;

Chuangu Wu, Beijing, CN;

Haikuo Sun, Beijing, CN;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F27D 1/00 (2006.01); F27D 1/04 (2006.01);
U.S. Cl.
CPC ...
F27D 1/0006 (2013.01); F27D 1/0033 (2013.01); F27D 1/0043 (2013.01); F27D 1/045 (2013.01);
Abstract

The present disclosure discloses a refractory protection layer for a metallurgical furnace, which includes a insulating layer, a permanent layer built with a refractory brick and arranged on the insulating layer, a working layer built with a refractory brick and arranged on the permanent layer, and a first anti-permeation layer made of ramming mass and arranged on the working layer. The refractory protection layer for the metallurgical furnace described in the present disclosure embodiments has both high temperature resistance and good permeability resistance.


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