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Scrap steel preheating-type heating furnace for steel production conducted through medium-frequency electric furnace

A technology for intermediate frequency electric furnaces and heating furnaces, which is applied in the direction of electric furnaces, furnaces, furnace types, etc., and can solve the problems of reducing electric energy consumption, etc., and achieve the effects of reducing flue gas volume, increasing productivity, and cheap prices

Inactive Publication Date: 2015-11-25
江苏兴辉炉业科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, aspects such as smelting oxygen blowing and waste heat utilization need to be developed and implemented, and there is no fundamental reduction of electric energy consumption in the prior art

Method used

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  • Scrap steel preheating-type heating furnace for steel production conducted through medium-frequency electric furnace
  • Scrap steel preheating-type heating furnace for steel production conducted through medium-frequency electric furnace
  • Scrap steel preheating-type heating furnace for steel production conducted through medium-frequency electric furnace

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing, the present invention is further described:

[0025] A scrap steel preheating heating furnace for intermediate frequency electric furnace steelmaking, comprising an intermediate frequency electric furnace 1, a heating furnace body 2, a conveying device 3, and a reflow hood 4, the conveying device 3 is arranged below the heating furnace body 2, Both sides of the heating furnace body 2 are respectively provided with a feed inlet 6 and a discharge outlet 7 , and the reflow hood 4 is supported and installed on the side of the heating furnace body 2 through a hydraulic cylinder 8 .

[0026] One end of the reflow hood 4 communicates with the discharge port 7 , and the other end is arranged directly above the intermediate frequency electric furnace 1 .

[0027] The transmission device 3 includes a frame 11, a chain plate 12, a conveying chain 13, a tensioning device 15, and a cycloidal pinwheel reducer 17, and the two ends of the...

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Abstract

The invention discloses a scrap steel preheating-type heating furnace for steel production conducted through a medium-frequency electric furnace and belongs to the technical field of heating devices. The scrap steel preheating-type heating furnace comprises the medium-frequency electric furnace, a heating furnace body, a conveying device and a backflow cover. The conveying device is arranged below the heating furnace body. A feeding opening and a discharging opening are formed in the two sides of the heating furnace body respectively. The backflow cover is installed on the side face of the heating furnace body in a supported mode through a hydraulic oil cylinder. According to the scrap steel preheating-type heating furnace for steel production conducted through the medium-frequency electric furnace, producer gas is adopted for heating, a gas source is obtained conveniently, and the price is low; scrap steel is preheated, so that a smelting period is shortened, and the productivity is improved; waste heat is used for heating the scrap steel, so that the energy utilization rate is increased; the moist scrap steel can be dried, the scrap steel with oil dirt and paint is completely combusted in advance, and thus splashing and losses of small iron particles are avoided; automatic and continuous preheating and feeding are achieved, so that manpower is saved while the labor intensity is lowered.

Description

technical field [0001] The invention relates to the technical field of heating devices, in particular to a scrap steel preheating furnace for intermediate frequency electric furnace steelmaking. Background technique [0002] Intermediate frequency electric furnace steelmaking is a high energy-consuming industry. The pursuit of high output, high quality and low consumption is the inevitable goal of the enterprise. The country puts forward very high requirements for energy saving and emission reduction. Carrying out national policies is an unshirkable responsibility of our energy-intensive steel industry. The output of electric furnace steel in my country has increased rapidly, and the quality has also continued to improve; but there is a certain gap in energy consumption compared with the same industry abroad. [0003] The steelmaking technology of the intermediate frequency electric furnace has also made great progress, mainly in the technological progress of the frequenc...

Claims

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Application Information

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IPC IPC(8): C21C5/52
CPCY02P10/20
Inventor 潘兴脆
Owner 江苏兴辉炉业科技有限公司
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