Structure-optimized carbon-containing pellet for rotary hearth furnace

A technology of rotary hearth furnace and carbon pellets, which is applied in the field of carbon-containing pellets and carbon-containing pellets for rotary hearth furnaces, can solve the problem of small outer surface area of ​​pellets, low reduction efficiency of pellets, and the center of pellets reaching the reduction reaction temperature. It takes a long time and other problems to achieve the effect of improving radiation capacity, improving simplicity and reasonableness, and reducing production costs.

Inactive Publication Date: 2020-07-14
潘良明 +4
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current carbon-containing pellets are generally spherical or ellipsoidal, and the outer surface area of ​​the pellets is small. It takes a long time for the center of the pellets to reach the reduction reaction temperature, and the reduction efficiency of the pellets is low.

Method used

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  • Structure-optimized carbon-containing pellet for rotary hearth furnace
  • Structure-optimized carbon-containing pellet for rotary hearth furnace
  • Structure-optimized carbon-containing pellet for rotary hearth furnace

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Embodiment Construction

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] For the sake of clarity, not all features of an actual embodiment are described. In the following description, well-known functions and constructions are not described in detail since they would obscure the invention with unnecessary detail and should be considered in the development of any actual embodiment. , a large number of implementation details must be made to achieve the developer's specific goals, such as changing from one embodiment...

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Abstract

The invention discloses a structure-optimized carbon-containing pellet for a rotary hearth furnace. The structure-optimized carbon-containing pellet for the rotary hearth furnace comprises a pellet body, grooves are formed in the surface of the pellet body, and the pellet is prepared from blast furnace cyclone ash, steelmaking primary ash, steelmaking dephosphorization ash, steelmaking decarburization ash and a mixture. According to the structure-optimized carbon-containing pellet for the rotary hearth furnace, the hemispherical grooves are machined in the end faces of the long axis and the short axis of the ellipsoidal pellet body, the radiation capacity of the pellet towards the outside is greatly improved, the temperature rise rate of the center of the pellet is accelerated, meanwhile,structural optimization and improvement are simple and reasonable, manufacturing is convenient, the production efficiency is greatly improved, the manufacturing cost is reduced, and the utilization rate of the carbon pellet is increased.

Description

technical field [0001] The invention relates to a carbon-containing pellet, in particular to a structure-optimized carbon-containing pellet for a rotary hearth furnace, which belongs to the technical field of charge. Background technique [0002] Carbon-containing pellets are generally used as the charge of the rotary hearth furnace. It is made of iron ore powder or metallurgical dust mixed with coal powder, binder, and additives in an appropriate proportion. A pressed carbon pellet. Under the action of radiation of high-temperature flue gas in the rotary hearth, the temperature of the pellets gradually increases from the surface to the central area, and the metal oxides and carbon in the pellets undergo reduction reactions. However, the current carbon-containing pellets are generally spherical or ellipsoidal, and the outer surface area of ​​the pellets is small. The time required for the center of the pellets to reach the reduction reaction temperature is long, and the red...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B1/24C21B13/10
CPCC21B13/105C22B1/2406
Inventor 潘良明王锋张伟姚凌何辉
Owner 潘良明
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