Ramming material for medium frequency furnace and preparation method of ramming material

A technology of ramming material and intermediate frequency furnace, which is applied in the field of refractory materials, can solve problems such as difficult construction, skin corrosion, waste of resources, etc., and achieve the effect of improving market competitiveness, strong market competitiveness, and prolonging service life

Inactive Publication Date: 2019-05-14
襄阳聚力新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the domestically produced ramming materials mainly have the following disadvantages: 1. It is not easy to preserve, and it is easy to absorb moisture in the air during storage and use, causing hydration reactions, and causing side effects such as weight gain and volume expansion of the ramming materials. Seriously affect the service life; 2. Poor plasticity, because the composition of the ramming material is relatively single, it is difficult to effectively form the annular joint filling, and the construction is difficult; 3. The compactness of the organizational structure after forming is poor, because the components of the ramming material mainly rely on The binder is fixed, and the cured ramming material has low connection strength between components, and the compactness is not enough, which affects

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1

[0028] A ramming material for intermediate frequency furnace, in parts by weight, including the following ingredients,

[0029] 80 parts of bauxite, the particle size of the bauxite is 0-5mm;

[0030] 20 parts of spinel, in the spinel, Fe≤2.5wt%;

[0031] 10 parts of magnesia powder, the particle size of the magnesia powder is 0.5-3mm;

[0032] 5 parts of thermosetting resin, the thermosetting resin is epoxy resin E51;

[0033] 20 parts of dried waste silicon sludge, the dried waste silicon sludge is prepared by the following steps: S1, taking the volume of waste silicon sludge as 1 reference unit, measure 4 parts of washing water of 1 reference unit, and add each part of washing water to After washing the waste silicon sludge twice, filtering and draining to obtain water-washed waste silicon sludge; S2, microwave drying will be used to dry the water-washed waste silicon sludge to obtain basic waste silicon sludge; the microwave drying means Put the water-washed wast...

Example Embodiment

[0037] Example 2

[0038] A ramming material for intermediate frequency furnace, in parts by weight, including the following ingredients,

[0039] 50 parts of bauxite, the bauxite is a grade ingredient, including bauxite with the following particle size: 30wt% bauxite with a particle size of 0~0.5mm, and 30wt% bauxite with a particle size of 0.5-2mm , 40wt% bauxite with a particle size of 2~5mm;

[0040] 30 parts of spinel, the spinel is a synthetic spinel, in the synthetic spinel, Fe≤2.5wt%, Co≤1wt%, Zn≤1wt%;

[0041] 20 parts of magnesia powder, the particle size of the magnesia powder is 0.5-3mm;

[0042] 10 parts of thermosetting resin, the thermosetting resin is epoxy resin E42;

[0043] 40 parts of dried waste silicon sludge are prepared by the following steps: S1, taking the volume of waste silicon sludge as 1 reference unit, measure 3 parts of rinse water of 1 reference unit, and add each part of rinse water to After washing the waste silicon sludge twice, filtering and drainin...

Example Embodiment

[0047] Example 3

[0048] A ramming material for intermediate frequency furnace, in parts by weight, including the following ingredients,

[0049] 60 parts of bauxite, the bauxite is a grade ingredient, including bauxite with the following particle size: 20wt% bauxite with a particle size of 0~0.5mm, and 50wt% bauxite with a particle size of 0.5-2mm , 30wt% bauxite with a particle size of 2~5mm;

[0050] 25 parts of spinel, the spinel is a synthetic spinel, in the synthetic spinel, Fe≤2.5wt%, Co≤1wt%, Zn≤1wt%;

[0051] 15 parts of magnesia powder, the particle size of the magnesia powder is 0.5-3mm;

[0052] 8 parts of thermosetting resin, the thermosetting resin is E35;

[0053] 30 parts of dried waste silicon sludge is prepared by the following steps: S1, taking the volume of waste silicon sludge as 1 reference unit, measure 2 parts of washing water of 1 reference unit, and add each part of washing water to After washing the waste silicon sludge three times, filtering and draining to...

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Abstract

The invention belongs to the technical field of refractory materials, in particular to a ramming material for a medium frequency furnace and a preparation method of the ramming material. The ramming material is prepared from the following components in parts by weight: 50-80 parts of bauxite, 20-30 parts of spinel, 10-20 parts of magnesite powder, 5-10 parts of thermosetting resin, 20-40 parts ofdried waste silicone sludge, 10-20 parts of silicon carbide particles with grain sizes being 1-3 mm, and 5-10 parts of graphite with the purity greater than 95wt%. The connecting strength and the compact strength of the inner structure of a cured product are relatively high, and the using effect is good. The ramming material is good in plasticity, relatively low in construction difficulty and relatively low in water-absorbing quality, and the service life of the ramming material is further prolonged compared with that of an existing ramming material. By taking the waste silicone sludge as a raw material, the production cost is lowered effectively. The product has relatively high cost performance and has relatively good market competitiveness, and the invention also provides a preparation method of the ramming material for the medium frequency furnace.

Description

technical field [0001] The invention belongs to the technical field of refractory materials, and in particular relates to a ramming material for an intermediate frequency furnace and a preparation method thereof. Background technique [0002] The lining of the intermediate frequency furnace is a key part of the intermediate frequency furnace. The quality of the lining refractory material is an important factor that determines the life of the intermediate frequency furnace, casting quality, safety and reliability. The intermediate frequency induction furnace has many advantages in smelting, but the thickness of the furnace lining is thin, the temperature gradient is large, and it is repeatedly subjected to rapid cooling and rapid heating, and based on the damage mechanism, the refractory material for the intermediate frequency induction furnace is required to have the following properties: good resistance to metal solution and slag penetration erosion performance; good high-t...

Claims

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Application Information

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IPC IPC(8): C04B35/103C04B35/622C04B35/81
Inventor 万少丰
Owner 襄阳聚力新材料科技有限公司
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