Equipment for manufacturing compressed iron and equipment for manufacturing molten iron
A technology of equipment and melter-gasifier, which is applied in the direction of manufacturing tools, presses, presses for material forming, etc., can solve the problems of increased manufacturing cost of auxiliary equipment and equipment, impermeability cannot be guaranteed, equipment damage, etc., to prevent Reduced working time, reduced stress and cost savings
Active Publication Date: 2011-12-14
浦项股份有限公司
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Problems solved by technology
Therefore, there is a problem that a huge investment in auxiliary equipment and equipment leads to an increase in manufacturing costs
[0009] However, since a high-speed airflow is formed in the upper part of the melter-gasifier included in the above-mentioned equipment for producing molten iron, there is a problem that fine reduced iron and sintered additives injected into the melter-gasifier are scattered and loose
In addition, when fine reduced iron and plasticized additives are injected into the melter-gasifier, there is a problem that the permeability of gas and liquid in the coal-packed bed of the melter-gasifier cannot be ensured
At this time, thermal stress is generated on the roller tire due to the hot fine reduced iron, so fatigue cracks that are generated and grown due to the long-term use of the equipment eventually cause the equipment to be damaged
Method used
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[0034] Exemplary embodiments of the present invention will be explained in detail below with reference to the accompanying drawings. The embodiments of the present invention are only for illustrating the present invention, and the present invention is not limited thereto.
[0035] figure 1 An apparatus 100 for manufacturing compressed iron according to an embodiment of the present invention is schematically shown. figure 1 The apparatus 100 for manufacturing compacted iron manufactures compacted iron by compressing and pulverizing fine ore, for example, fine direct reduced iron (DRI). The structure of the apparatus 100 for manufacturing compressed iron is only for illustrating the present invention, and the present invention is not limited thereto. Therefore, the structure of the apparatus 100 for manufacturing compressed iron may be modified into other forms.
[0036] In particular, even though it is only shown that fine reduced iron is injected into the charging device 11...
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Abstract
An apparatus for manufacturing compacted iron, the apparatus comprising at least one pair of molding rolls which compress fine ore and manufacture compacted iron. The pair of molded rollers includes: a shaft provided with a cooling path; and a roller tire surrounding the shaft to be combined with the shaft.
Description
technical field [0001] The present invention relates to an apparatus for manufacturing compacted iron and an apparatus for manufacturing molten iron using the apparatus for manufacturing compacted iron, and more particularly, to an apparatus for manufacturing molten iron by compacting An apparatus for reducing raw materials to manufacture compacted iron and an apparatus for manufacturing molten iron using the apparatus for manufacturing compacted iron. Background technique [0002] The steel industry is a core industry that provides the basic materials needed in construction and in the manufacture of the cars, boats, appliances and many other products we use. The steel industry is also one of the industries with the longest history that has progressed along with mankind. In iron foundries (in the steel industry, iron foundries play a key role), after molten iron (pig iron in a molten state) is produced by using iron ore and coal as raw materials, steel is produced by molten...
Claims
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IPC IPC(8): C22B1/16
CPCC21B13/0086C21B13/143B30B11/18C22B1/24C22B1/248C21B13/002C22B1/16
Inventor 申铭赞赵一显
Owner 浦项股份有限公司