Patents-Review.com
ClassID:

118709 ⎘

C21B5/003 - CPC Classification

Classification description:

Making pig-iron in the blast furnace; Injecting additional fuel or reducing agents Injection of pulverulent coal

Sub-classes:
Recent Application in this class:
#1
20260043098
2026-02-12

METHOD FOR PRODUCING PIG IRON

 #2
20220380859
2022-12-01

METHOD FOR OPERATING BLAST FURNACE

 #3
20220177985
2022-06-09

METHOD FOR OPERATION OF BLAST FURNACE

 #4
20210190426
2021-06-24

Blast furnace apparatus and operation method for blast furnace

 #5
20210101798
2021-04-08

Fine particle coal, and systems, apparatuses, and methods for collecting and using the same

 #6
20200299792
2020-09-24

Blast furnace operation method

 #7
20200087742
2020-03-19

Operating method of an iron making installation and associated operating installation

 #8
20190337805
2019-11-07

Fine particle coal, and systems, apparatuses, and methods for collecting and using the same

 #9
20180044745
2018-02-15

Method for operating blast furnace

 #10
20180023152
2018-01-25

Method for operating blast furnace

 #11
20170234619
2017-08-17

Method for blowing substitute reducing agents into a blast furnace

 #12
20170058372
2017-03-02

METHOD FOR PREPARING COAL TO BE INJECTED INTO BLAST FURNACE, COAL TO BE INJECTED INTO BLAST FURNACE, AND USAGE OF SAME

 #13
20170002433
2017-01-05

Blast furnace and method for operating a blast furnace

 #14
20160326604
2016-11-10

Method for operation of blast furnace

 #15
20160208349
2016-07-21

METHOD FOR OPERATING A BLAST FURNACE

 #16
20160138120
2016-05-19

Blast furnace operation method

 #17
20160053338
2016-02-25

Blast furnace operation method

 #18
20150353358
2015-12-10

Fine particle coal, and systems, apparatuses, and methods for collecting and using the same

 #19
20150345870
2015-12-03

Molten iron manufacturing apparatus and molten iron manufacturing method

 #20
20150284816
2015-10-08

SLAG REMOVAL DEVICE

 #21
20150275322
2015-10-01

BLOW-PIPE STRUCTURE

 #22
20150275321
2015-10-01

Method for operating blast furnace and method for producing molten pig iron

 #23
20150247212
2015-09-03

BLOW PIPE STRUCTURE

 #24
20150240322
2015-08-27

SLAG REMOVAL DEVICE AND SLAG REMOVAL METHOD

 #25
20150225804
2015-08-13

PULVERIZED-COAL INJECTION DEVICE, BLAST FURNACE FACILITY PROVIDED WITH THE SAME, AND PULVERIZED-COAL SUPPLYING METHOD

 #26
20150218666
2015-08-06

BLAST FURNACE INSTALLATION

 #27
20150218477
2015-08-06

Method for preparing blast furnace blow-in coal

 #28
20150203930
2015-07-23

Method for preparing blast furnace blow-in coal

 #29
20150203929
2015-07-23

METHOD FOR PRODUCING PIG IRON AND BLAST FURNACE FACILITY USING SAME

 #30
20150191804
2015-07-09

Blast-furnace blowing coal and method for producing same

 #31
20150184939
2015-07-02

BLAST FURNACE INSTALLATION

 #32
20150184263
2015-07-02

Blast furnace operating method and tube bundle-type lance

 #33
20150176096
2015-06-25

METHOD FOR PRODUCING PIG IRON, AND BLAST FURNACE TO BE USED THEREFOR

 #34
20150008626
2015-01-08

Blast furnace

 #35
20140159287
2014-06-12

Method for operating a blast furnace

 #36
20140131929
2014-05-15

Method for operating a blast furnace

 #37
20130320049
2013-12-05

Powder supply apparatus and powder supply method

 #38
20120266966
2012-10-25

Metering system, dense phase conveying system and method for supplying bulk material in powder form

 #39
20120257934
2012-10-11

METERING SYSTEM, DENSE PHASE CONVEYING SYSTEM AND METHOD FOR SUPPLYING BULK MATERIAL IN POWDER FORM

 #40
20120079917
2012-04-05

Method for the simultaneous production of iron and a crude syngas containing CO and H

 #41
20120036961
2012-02-16

Method and system for producing pig iron or fluid steel pre-products

 #42
20110271587
2011-11-10

Method of producing pulverized coal

 #43
20110192080
2011-08-11

Method for producing pulverized coal

 #44
20110192079
2011-08-11

METHOD FOR PRODUCING PULVERIZED COAL

 #45
20110180978
2011-07-28

Method for feeding pulverised coal into a blast furnace

 #46
20100316472
2010-12-16

Solids distributor for injection plants, blast furnaces and the like

 #47
20100294080
2010-11-25

Method for the production and the melting of liquid pig iron or of liquid steel intermediate products in a melt-down gasifier

 #48
20100001443
2010-01-07

Pulverized coal injection lance

 #49
20070205543
2007-09-06

Oxidant-swirled fossil fuel injector for a shaft furnace