公开(公告)号：US20240100579A1

公开(公告)日：2024-03-28

申请号：US17766218

申请日：2019-12-03

Applicant: ZHANGJIAGANG HONGCHANG STEEL PLATE CO., LTD. ,  JIANGSU SHAGANG GROUP CO., LTD. ,  INSTITUTE OF RESEARCH OF IRON AND STEEL, JIANGSU PROVINCE/SHA-STEEL, CO., LTD.

Inventor： RUI MAO ,  SHENDONG MAO ,  FEI WANG ,  HANG SU

IPC: B09B3/40 ,  B01D53/50 ,  B01D53/80 ,  B01D53/96 ,  B09B3/70 ,  C01B17/50 ,  C01F11/08 ,  C22B1/16

CPC classification number: B09B3/40 ,  B01D53/502 ,  B01D53/80 ,  B01D53/96 ,  B09B3/70 ,  C01B17/506 ,  C01F11/08 ,  C22B1/16 ,  B01D2251/404 ,  B01D2251/602 ,  B01D2251/604 ,  B01D2257/302 ,  B01D2258/0283 ,  B09B2101/30

Abstract: The present invention discloses a resource recovery method and a resource recovery system of desulfurized ash. The resource recovery method comprises: washing desulfurized ash with water, and performing solid-liquid separation to obtain solid residues rich in calcium sulfite and calcium sulfate and a solution rich in calcium hydroxide; preparing the solution into desulfurized slurry; and roasting the solid residues under the action of a reducing agent to obtain flue gas rich in sulfur dioxide and residues rich in calcium oxide. Therefore, the recovery of sulfur and calcium in the desulfurized ash is realized, and no solid waste, liquid waste, gas waste, etc. are produced in the process.

公开(公告)号：US20220220573A1

公开(公告)日：2022-07-14

申请号：US17613917

申请日：2019-07-22

Applicant: INSTITUTE OF RESEARCH OF IRON & STEEL, JIANGSU PROVINCE/SHA-STEEL, CO., LTD. ,  ZHANGJIAGANG HONGCHANG STEEL PLATE CO., LTD. ,  JIANGSU SHAGANG GROUP CO., LTD.

Inventor： YU ZHANG ,  HAN MA ,  YUN ZHOU ,  HUANDE CHEN

IPC: C21D9/00 ,  C22C38/54 ,  C22C38/50 ,  C22C38/48 ,  C22C38/46 ,  C22C38/44 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C21D8/06 ,  C21D6/00 ,  B22D11/115

Abstract: Disclosed are a high-strength steel bar and a production method therefor. The high-strength steel bar comprises, by mass percentage, the following chemical components: C: 0.15-0.32%, Si+Mn: 0.5-1.9%, Mn+Cr+Mo+Ni: 1.1-2.1%, V: 0.02-0.8%, at least one of Nb, Ti and Al: 0.01-0.3%, and the balance of Fe and inevitable impurities; wherein Mn=(2.5-3.5)Si, and a carbon equivalent satisfies Ceq=C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15≤0.56%.