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A black smear material for waste magnesia carbon bricks

A technology for waste magnesia carbon bricks and smears, applied in the field of black smears for waste magnesia carbon bricks, can solve the problems of excess function, large insurance factor, material waste, etc., and achieve the effects of compact structure, convenient construction and cost reduction.

Active Publication Date: 2014-10-08
浙江琰大新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Spreading materials on the market often do not pay attention to whether the matching between performance and specific conditions of use is economical and reasonable, and there is a waste of "capacity" in the form of "overkill for small use", leaving an excessive insurance factor in material configuration and selection, resulting in a certain surplus of functions and material waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Example 1, the mass percent of each component in the waste magnesia carbon brick black smear is: waste magnesia carbon brick 50wt%, forsterite 35wt%, magnesia fine powder 13.8wt%, newspaper fiber 0.1wt%, binding agent 0.1wt%.

Embodiment 2

[0016] Example 2, the mass percent of each component in the waste magnesia carbon brick black smear is: waste magnesia carbon brick 45wt%, forsterite 40wt%, magnesia fine powder 14.8wt%, newspaper fiber 0.08wt%, binding agent 0.12wt%.

Embodiment 3

[0017] Example 3, the mass percent of each component in the waste magnesia carbon brick black smear is: waste magnesia carbon brick 54.8wt%, forsterite 30wt%, magnesia fine powder 15wt%, newspaper fiber 0.1wt%, binding agent 0.1wt%.

[0018] The above-mentioned waste magnesia carbon brick black smear preparation method comprises the following steps successively:

[0019] a) The massive waste magnesia carbon bricks are broken into large particles with a jaw crusher;

[0020] b) Use a roller crusher to pulverize the large particles into small particles with a particle diameter of 0-3 mm;

[0021] c) Part of the small particles are finely ground into a fine powder with a particle size of 0.088mm by a ball mill;

[0022] d) Sieve the small particles according to different particle sizes, take small particles with a particle size of 0-1mm: 15wt-18%; small particles with a particle size of 1-3mm: 25-28wt%;

[0023] e) Take fine powder with a particle size of 0.088mm: 5-9wt%;

[...

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Abstract

The invention discloses a waste magnesia carbon brick black smearing material which is composed of waste magnesia carbon bricks, forsterite, magnesite fine powder, newspaper fibers and binding agents, wherein the binding agents are formed by mixing sodium tripolyphosphate, calcium lignosulphonate, a-Al2O3, SiO and CA-70 cement. The carbon brick black smearing material is prepared on the basis of tundish continuous pouring time, environment temperature and environmental protection use requirement, the waste magnesia carbon brick and forsterite are taken as main raw materials, the rational utilization and the cyclic utilization of the resource are realized, and the cost is also reduced.

Description

technical field [0001] The invention relates to a black smear material for waste magnesia carbon bricks. Background technique [0002] At present: There are many types of smear materials, and their properties vary greatly. Generally, magnesia and magnesia-calcium sand are used as the main raw materials. These raw materials are all energy-intensive products, and the resources are increasingly depleted, and the prices are also increasing year by year. Spreading materials on the market often do not pay attention to whether the matching between performance and specific conditions of use is economical and reasonable, and there is a waste of "capacity" in the form of "overkill for small use", leaving an excessive insurance factor in material configuration and selection, resulting in a certain surplus of functions and material waste. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a black smear material for waste magn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 于琪芳江群英
Owner 浙江琰大新材料有限公司
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