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Submerged arc furnace for producing macrocrystalline fused magnesite

A technology of fused magnesia and submerged arc furnace, which is used in furnaces, crucible furnaces, waste heat treatment and other directions

Pending Publication Date: 2021-05-11
岫岩满族自治县恒锐镁制品有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0008] The invention provides a submerged arc furnace for producing large-crystal fused magnesia, which solves the problem that the large-crystal fused magnesia can be preheated by using the residual heat of the flue gas in the smelting process during the heating and melting process of the large-crystal fused magnesia. The technical solution is as follows:

Method used

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  • Submerged arc furnace for producing macrocrystalline fused magnesite

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Embodiment Construction

[0027] Such as figure 1 As shown, the submerged arc furnace for producing large crystal fused magnesia includes a furnace tube device, a feeding device and a smoke collection device, and the feed device and the smoke collection device are connected to the furnace cover of the furnace tube device, The feeding chute of the feeding device passes through the drying cylinder of the flue gas collecting device, and the material in the feeding chute is preheated by the flue gas in the drying cylinder.

[0028] The furnace tube device includes a trolley 1, a furnace body 2, a sealing gasket 3 and a furnace cover 4. The furnace body 2 is placed on the trolley 1, and a furnace cover 4 is arranged on the top of the furnace body 2. The lower part of the furnace cover 4 is There is a ceramic fiber sealing washer 3 between the furnace body 2 top to strengthen the sealing effect. The inner wall of the furnace cover 4 is provided with a refractory material layer, which plays the role of heat ...

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Abstract

The invention provides a submerged arc furnace for producing macrocrystalline fused magnesite. The submerged arc furnace comprises a furnace barrel device, a feeding device and a flue gas collecting device, the feeding device and the flue gas collecting device are connected with a furnace cover of the furnace barrel device, and the flue gas collecting device preheats materials in the feeding device by using flue gas. According to the submerged arc furnace, the flue gas of the submerged arc furnace for macrocrystalline fused magnesite is recycled, and raw materials are preheated by utilizing flue gas waste heat; in the production process, natural magnesite powder can be pre-decomposed by high-temperature flue gas, most CO2 gas is released in advance, and the adding proportion is increased; and automatic feeding can be realized through flue gas temperature monitoring.

Description

technical field [0001] The invention relates to a production and processing device for large crystal fused magnesia, in particular to a submerged arc furnace for producing large crystal fused magnesia. Background technique [0002] At present, most of the large crystalline fused magnesia mainly use high-quality light-burned magnesia powder as the main raw material, which is added into the furnace barrel of the submerged arc furnace with the open top of the furnace by manual feeding, and is smelted using three electrodes suspended or fixed by cross arms. have to. [0003] During the production process, as the raw materials are continuously heated and melted, it is necessary to continuously replenish new light-burned magnesia powder into the furnace cylinder. This work is generally judged by experienced workers and added manually. Since the top of the furnace cylinder is an open structure, the hot flue gas during the feeding process will fly out of the furnace cylinder with l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B14/08F27D17/00C04B2/10
CPCC04B2/102F27B14/08F27D17/001
Inventor 徐吉龙邓乐锐赵金秋章荣会杨海峰李娜李玺
Owner 岫岩满族自治县恒锐镁制品有限公司
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