Purging device and technology of blast furnace charging bucket weighing system

A material tank and blast furnace technology, which is applied in the field of blast furnace top material tank weighing system, can solve problems such as narrow working space and short ash deposition period, and achieve the effects of ensuring external force interference, increasing iron output, and reducing coke ratio.

Active Publication Date: 2016-03-02
武汉钢铁有限公司 +1
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Problems solved by technology

However, because the working space is very narrow, this method can only remove a part of the ash, if no measures are taken, the ash accumulation period will be shorter and shorter

Method used

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  • Purging device and technology of blast furnace charging bucket weighing system
  • Purging device and technology of blast furnace charging bucket weighing system
  • Purging device and technology of blast furnace charging bucket weighing system

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0027] Such as Figure 1-Figure 3 As shown, a blast furnace material tank weighing system purging device, the weighing system includes: including a material tank 1, a material flow regulating valve 2, three weighing sensors 3 and a lower valve box 4, the inlet cone of the material flow regulating valve 5 is connected to the bottom of the material tank 2, the whole formed by the material tank 2 and the material flow regulating valve 2 is located on the three load cells 3, the lower valve box 4 is arranged outside the material flow regulating valve 2, and is connected with the material flow regulatin...

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Abstract

The invention discloses a purging device and technology of a blast furnace charging bucket weighing system. The purging device comprises a ripple compensator purging mechanism and a lower valve box purging mechanism, wherein the ripple compensator purging mechanism comprises a first pipeline, and a first manual block valve, a first valve, a first pressure meter, a first one-way valve and a first decompression valve which are sequentially arranged on the first pipeline from outside to inside; the outer end of the first pipeline is connected with a nitrogen source; the inner end of the first pipeline is connected with the inner cavity of a ripple compensator; the lower valve box purging mechanism comprises a second pipeline, and a second manual block valve, a second valve, a second pressure meter, a second one-way valve and a second decompression valve which are sequentially arranged on the second pipeline from outside to inside; the outer end of the second pipeline is connected with a nitrogen source; and the inner end of the second pipeline is connected with a cavity. According to the purging device, the dusty gas can be effectively prevented from flowing or spreading into the inner cavity of the ripple compensator and the clearance between the bottom of a material flow regulating valve chute and the outer shell of a lower valve box.

Description

technical field [0001] The invention relates to a blast furnace top material tank weighing system, in particular to a blast furnace material tank weighing system purging device and process. Background technique [0002] In blast furnace production, the temperature in the center of the blast furnace top space is as high as about 700°C, and the pressure in the top space is about 2.5MPa. Raw materials are loaded into the blast furnace from the outside of the furnace at atmospheric pressure, and the raw materials are distributed on the material surface according to the operator's requirements. superior. The above functions are completed by the bellless furnace top, which has many forms, among which the old-fashioned tank-joining bellless furnace roof is an early structural form. In the charging process, the weighing system needs to complete the weighing of the weight of the tank and the raw materials it contains, which is used to control the charging process and prevent acciden...

Claims

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Application Information

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IPC IPC(8): C21B7/20C21B7/22
Inventor 姜本熹陈辉陈进军雷威黄瑞钢徐旭刁亭月余绍华刘志斌赵建勋
Owner 武汉钢铁有限公司
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