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1. CN107460274 - Horizontal continuous feeding and preheating device and strengthened preheating method thereof

Office Chine
Numéro de la demande 201710867653.3
Date de la demande 22.09.2017
Numéro de publication 107460274
Date de publication 12.12.2017
Type de publication A
CIB
C21C 5/52
CCHIMIE; MÉTALLURGIE
21MÉTALLURGIE DU FER
CTRAITEMENT DE LA FONTE BRUTE, p.ex. AFFINAGE, FABRICATION DE FER OU D'ACIER PUDDLÉS; TRAITEMENT DES ALLIAGES FERREUX À L'ÉTAT LIQUIDE
5Fabrication d'acier au carbone, p.ex. acier doux, acier à teneur moyenne en carbone ou acier pour moulage
52Fabrication de l'acier au four électrique
CPC
C21C 5/527
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
5Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel ; or stainless steel
52Manufacture of steel in electric furnaces
527Charging of the electric furnace
C21C 5/565
CCHEMISTRY; METALLURGY
21METALLURGY OF IRON
CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
5Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel ; or stainless steel
56Manufacture of steel by other methods
562starting from scrap
565Preheating of scrap
F27B 3/085
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27FURNACES; KILNS; OVENS; RETORTS
BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
3Hearth-type furnaces, e.g. of reverberatory type
08heated electrically, with or without any other source of heat
085Arc furnaces
F27B 3/205
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27FURNACES; KILNS; OVENS; RETORTS
BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
3Hearth-type furnaces, e.g. of reverberatory type
10Details, accessories, or equipment peculiar to hearth-type furnaces
20Arrangements of heating devices
205Burners
F27B 3/28
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27FURNACES; KILNS; OVENS; RETORTS
BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
3Hearth-type furnaces, e.g. of reverberatory type
10Details, accessories, or equipment peculiar to hearth-type furnaces
28Arrangement of controlling, monitoring, alarm or the like devices
F27D 13/002
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27FURNACES; KILNS; OVENS; RETORTS
DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
13Apparatus for preheating charges; Arrangements for preheating charges
002Preheating scrap
Déposants CISDI ENGINEERING CO., LTD.
MCC CISDI TECHNOLOGY RESEARCH CENTER CO., LTD.
Inventeurs HUANG QIMING
TAN CUNZHEN
SHI WEIZHI
ZHANG YUCHUAN
GAO ZHAN
AI LEI
LIU CHUNTING
LIN WEI
LIU CHAO
Titre
(EN) Horizontal continuous feeding and preheating device and strengthened preheating method thereof
(ZH) 一种水平连续加料预热装置及其强化预热方法
Abrégé
(EN)
The invention belongs to the field of metallurgical technologies and discloses a horizontal continuous feeding and preheating device and a strengthened preheating method of the horizontal continuous feeding and preheating device. According to the scheme, two dust removal openings are correspondingly formed in the front portion and the rear portion of a horizontal continuous feeding and preheating duct, and the horizontal continuous feeding and preheating duct is divided into a strengthened preheating region and a smoke preheating region by the front dust removal opening and the rear dust removal opening; burners are mounted in the strengthened preheating region, and the two dust removal openings are correspondingly connected with smoke adjustment distributors through smoke pipelines; the dust removal negative pressure of the second dust removal opening is balanced by the jet flow dynamic pressure of the multiple rows of bruners in the strengthened preheating region; and the micro-negative pressure requirement of the first dust removal opening is controlled through a pressure sensor, so that the mixing amount of cold air of the first dust removal opening is reduced, the preheating efficiency of the burners and smoke of an electric arc furnace on steel scrap is improved, and the production is more environmentally-friendly.

(ZH)
本发明属于冶金技术领域,公开了一种水平连续加料预热装置及其强化预热方法,方案包括在水平连续加料预热涵道上前后设置两个除尘口,通过前后设置的两个除尘口将水平连续加料预热涵道分为强化预热区与烟气预热区;强化预热区装有烧嘴,两个除尘口分别通过烟气管道与烟气调接分配器联接;强化预热区内多排烧嘴的射流流体动压平衡第二除尘口的除尘负压;通过压力传感器,控制第一除尘口的微负压要求,从而减少第一除尘口冷空气的混入量,通过控制混合烟气流量与混合烟气温度,提高烧嘴和电弧炉烟气对废钢的预热效率,并使得生产更环保。

Également publié en tant que
JP2020516628
RU2020112899