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Regenerative iron runner castable

A technology of iron trench castables and raw materials, which is applied in the field of metal smelting and recycled iron trench castables, can solve the problems of damage, waste of resources and environment, and achieve the goals of improving high temperature flexural strength, enhancing slag resistance, and reducing apparent porosity Effect

Inactive Publication Date: 2016-01-06
长兴云峰炉料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, many refractory enterprises will produce a large amount of skateboard grinding waste in the annual skateboard production, and random stacking will cause waste of resources and damage to the environment

Method used

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  • Regenerative iron runner castable
  • Regenerative iron runner castable
  • Regenerative iron runner castable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: Skateboard grinding waste: 60 parts; andalusite: 10 parts; silicon carbide: 11 parts; antioxidant: 5 parts; polypropylene fiber: 1 part; composite micropowder: 10 parts; composite binder: 12 parts; Dispersant: 1 part.

Embodiment 2

[0031] Example 2: Skateboard grinding waste: 65 parts; andalusite: 15 parts; silicon carbide: 12 parts; antioxidant: 6 parts; polypropylene fiber: 1 part; composite fine powder: 14 parts; composite binder: 11 parts; Dispersant: 1 part.

Embodiment 3

[0032] Example 3: Skateboard grinding waste: 70 parts; andalusite: 17 parts; silicon carbide: 12 parts; antioxidant: 5 parts; polypropylene fiber: 1 part; composite micropowder: 16 parts; composite binder: 14 parts; Dispersant: 2 parts.

[0033] The present invention utilizes cheap sliding plate grinding wastes whose main components are corundum, high alumina bauxite and carbon materials to manufacture low-cost iron ditch castables, and the iron ditch castables are added with slide grinding wastes to fill gaps and significantly reduce the The apparent porosity of the iron channel material increases the bulk density and flexural strength, and enhances the slag resistance. The composite silica sol-sodium polyacrylate in the iron channel castable is used as a binder to make the iron channel material form a large number of different shapes at high temperature. Reticular mullite crystals, reticular staggered in the structure, improve the high temperature flexural strength; on the o...

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Abstract

The invention discloses a regenerative iron runner castable. The iron runner castable with low cost is manufactured by utilizing cheap skateboard grinding waste materials of which main components include corundum, high-alumina bauxite and carbon materials, so that the apparent porosity of the iron runner castable is obviously reduced, the volume density and the rupture strength are increased, and the slag resistant performance is enhanced. Compound silicon sol-sodium polyacrylate in the iron runner castable is used as a binding agent, so that the iron runner castable forms a large quantity of meshy mullite crystals in different shapes at high temperature, the meshy mullite crystals are scattered in structures, so that the high-temperature rupture strength is increased, the cold crushing strength of the iron runner castable is enhanced, and the construction performance is improved. The performance of the regenerative iron runner castable is flat with that of an existing iron runner castable, the price is only 85% of the existing iron runner castable, and the regenerative iron runner castable meets the development requirements of clean production and circular economy.

Description

【Technical field】 [0001] The invention relates to the technical field of metal smelting, in particular to the technical field of a recycled iron trench castable. 【Background technique】 [0002] The tapping trough of blast furnace is a passage for guiding high temperature molten iron and slag and fully separating them. The service life of the refractories used in it directly affects the normal production of blast furnace. At present, the iron ditch has loose tissue, anti-oxidation, and low iron flow rate. The iron ditch has a minor repair in three days and a major repair in five days. The number of repeated hook repairs is high, the labor intensity of the workers is high, and the use of the iron ditch is short. It often affects the punctual tapping of the blast furnace, which brings inconvenience to the blast furnace production. With the continuous improvement of blast furnace intensified smelting and blast furnace operation technology, the utilization factor of blast furnac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 佘云锋佘成其吴建华
Owner 长兴云峰炉料有限公司
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