Method for manufacturing molten irons by injecting a hydrocarbon gas and apparatus for manufacturing molten irons using the same

A technology of molten iron and equipment, applied in lighting and heating equipment, reducing gas emissions, furnace components, etc., can solve problems such as serious environmental pollution, difficulty in furnace-gasifier activities, and failure to reduce iron ore to make contributions
CN101346478BActive Publication Date: 2010-11-17浦项股份有限公司
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
浦项股份有限公司
Publication Date
2010-11-17

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The present invention relates to a method for manufacturing molten iron by injecting a hydrocarbon gas and an apparatus for manufacturing molten iron using the same. A method for manufacturing molten iron according to an embodiment of the present invention includes: i) converting iron ore into reduced materials while passing the iron ore through a reduction reactor, ii) charging lumped carbonaceous materials into a melter-gasifier connected to the reduction reactor and forming a coal-packed bed in the melter-gasifier, iii) charging the reduced materials into the melter-gasifier connected to the reduction reactor, injecting oxygen, vapor, and hydrocarbon gas together into a lower portion of the coal-packed bed and manufacturing molten iron, and iv) supplying a reducing gas discharged from the melter-gasifier to the reduction reactor. The vapor is injected to prevent the oxygen and the hydrocarbon gas from contacting each other in the manufacturing of molten iron.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present invention relates to a method for producing molten iron by injecting hydrocarbon gas and an apparatus for producing molten iron using the method, and more particularly, to injecting hydrocarbon gas by injecting hydrocarbon gas into a melter-gasifier to ensure sufficient gas for melting reduced iron A heat source and a method of producing molten iron for generating high-quality reducing gas and equipment for producing molten iron using the method. Background technique

[0002] The steel industry is one of the core industries, providing the basic materials needed to build and manufacture cars, ships, household appliances, and many other products used by humans. It is also one of the oldest industries developed together with human beings. Iron foundries play a key role in the steel industry where iron ore and coal are used as raw materials to produce molten iron (ie pig iron in a molten state) from which steel is produced which is then suppli...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More