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A kind of stacking mud for blast furnace slag ditch and its preparation method and use method

A technology of blast furnace slag and cascading gates, which is applied in the field of refractory mud for blast furnace ironmaking, can solve the problems of high production and use costs, reduce production costs and achieve good application effects

Active Publication Date: 2016-04-27
攀枝花攀西蓝星化学清洗有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing stacking mud is mainly made of asphalt, coke powder, magnesia, binder and other components. The service life of the product is 10-15 days, which basically meets the needs of customers, but there are problems of high production and use costs

Method used

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  • A kind of stacking mud for blast furnace slag ditch and its preparation method and use method
  • A kind of stacking mud for blast furnace slag ditch and its preparation method and use method
  • A kind of stacking mud for blast furnace slag ditch and its preparation method and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1 Preparation and application effect of stacked mud for blast furnace slag ditch of the present invention

[0026] After weighing 46 parts by weight of binder, 25 parts by weight of coke powder, 23 parts by weight of waste magnesium carbonaceous material, and 6 parts by weight of pitch, the waste magnesium material and coke powder are respectively sent into the mixing mixer Carry out mixing and stirring. After mixing and stirring for 1 minute, add asphalt and binder and continue mixing and stirring for 4 minutes. Finally, add 9% water and stir for 2 minutes, then pack it into bags for later use, and take samples for inspection. See Table 1 for details of the indicators, and see Tables 2 and 3 for details on the effect of using stacked mud for blast furnace slag ditch as a release agent on site.

Embodiment 2

[0027] Example 2 Preparation and application effect of stacked mud for blast furnace slag ditch of the present invention

[0028] After weighing 50 parts by weight of binder, 25 parts by weight of coke powder, 20 parts by weight of waste magnesium carbonaceous material, and 5 parts by weight of pitch, the waste magnesium material and coke powder are respectively sent into the mixing mixer Mix and stir. After mixing and stirring for 1 minute, add asphalt and binder and continue mixing and stirring for 4 minutes. Finally, add 9% water and stir for 2 minutes, then pack it into bags for later use, and take samples for inspection. See Table 1 for details, and see Tables 2 and 3 for details on the effect of using stacked sluice mud for blast furnace slag ditch as a release agent on site.

Embodiment 3

[0029] Example 3 Preparation and application effect of stacked mud for blast furnace slag ditch of the present invention

[0030] After weighing 48 parts by weight of binder, 26 parts by weight of coke powder, 20 parts by weight of waste magnesium carbonaceous material, and 8 parts by weight of pitch, the waste magnesium material and coke powder are respectively sent into the mixing mixer Mix and stir. After mixing and stirring for 1 minute, add asphalt and binder and continue mixing and stirring for 4 minutes. Finally, add 9% water and stir for 2 minutes, then pack it into bags for later use, and take samples for inspection. See Table 1 for details, and see Tables 2 and 3 for details on the effect of using stacked sluice mud for blast furnace slag ditch as a release agent on site.

[0031] Comparative example of stacking mud: 8 parts by weight of asphalt, 26 parts by weight of coke powder, 20 parts by weight of magnesia, and a conventional binder. See Table 1 for the physica...

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Abstract

The invention belongs to the technical field of refractory mud materials for blast furnace ironmaking, particularly relates to stoplog mud for a blast furnace slag groove and a preparation method and a use method of the stoplog mud, and overcomes the deficiencies in the prior art. The stoplog mud prepared from metallurgical secondary resources as main raw materials is prepared from the following raw materials in parts by weight: 45-50 parts of a bonder, 25-38 parts of carbon materials, 20-30 parts of waste magnesia carbon materials and 3-10 parts of asphalt, wherein the waste magnesia carbon materials are formed by screening and processing materials such as magnesia carbon bricks and alumina-magnesia carbon bricks after the materials are used by a production steelmaking converter and a steel ladle, the screening grain size is not more than 5 mm, and the main technical index is that 60-75% of MgO and 5-15% of C are contained. According to the stoplog mud, the production cost is low, the service life is equal to that of an existing product, and a brand-new selection is provided for the stoplog mud for the blast furnace slag groove.

Description

technical field [0001] The invention belongs to the technical field of refractory mud for blast furnace ironmaking, and in particular relates to a stacking mud for blast furnace slag ditch and its preparation method and use method. Background technique [0002] Laminated sluice mud is mainly used to pave the lower slag ditch and slag stacked sluice of the ironmaking blast furnace. The stacked sluice mud product must not only have reasonable chemical index requirements, but also have good high-temperature erosion resistance. The schematic diagram of its use is as follows figure 1 As shown, the molten iron flows out from the taphole and is separated from the slag and iron, and the liquid slag passes through the lower slag ditch and is blocked by the slag stacking gate into the slag pot. In this process, the bottom of the lower slag ditch needs to be paved with stacking mud to resist the high temperature erosion brought by the liquid slag, and a certain thickness of stacked mud...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00C04B35/66
Inventor 青光红卓胜陈桂卫
Owner 攀枝花攀西蓝星化学清洗有限公司
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