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Carbon ramming material and preparation method thereof

A carbon ramming material and particle size technology, applied in the field of ramming material, can solve the problems of affecting the service life of the blast furnace, affecting the production rhythm of the blast furnace, and unfavorable rapid cooling of the furnace body, so as to achieve low production cost, increase density, and promote formation Effect

Inactive Publication Date: 2017-12-05
中冶南方邯郸武彭炉衬新材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, carbon ramming materials mainly have shortcomings such as low thermal conductivity and poor construction performance, which in turn affect the production rhythm of the blast furnace, are not conducive to the rapid cooling of the furnace body, and affect the service life of the blast furnace

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A carbon ramming material and a preparation method thereof. The steps of the preparation method described in this embodiment are:

[0035] The first step, 60~70wt% coal tar pitch, 5~10wt% aluminum stearate, 5~10wt% polyphosphoric acid, 5~10wt% dioctyl sodium sulfosuccinate, 1~5wt% % aluminum sulfate and 1~5wt% anhydrous oxalic acid were mixed evenly, heat treated at 100~200°C for 2~5 hours, cooled to room temperature, crushed, and sieved to obtain sieved material A with a particle size of less than 0.088mm.

[0036] Second step, with the described screening material A of 70~80wt%, the maleic acid of 5~10wt%, the zinc oxide powder of 1~5wt%, the copper powder of 1~5wt% and the anhydrous Mix oxalic acid evenly, heat-treat at 100-200°C for 2-5 hours, cool to room temperature, crush, and sieve to obtain sieve material B with a particle size of less than 0.088mm.

[0037] In the third step, 40~50wt% of electric calcined anthracite with a particle size of 1~8mm, 10~20wt% of...

Embodiment 2

[0040] A carbon ramming material and a preparation method thereof. The steps of the preparation method described in this embodiment are:

[0041] The first step, the coal tar pitch of 70~80wt%, the zinc stearate of 1~5wt%, the polyphosphoric acid of 5~10wt%, the sodium cetyl alcohol succinate monoester sulfonate of 1~5wt%, 1 ~5wt% aluminum nitrate and 1~5wt% citric acid monohydrate are evenly mixed, heat treated at 100~200°C for 2~5 hours, cooled to room temperature, crushed, and sieved to obtain a sieved material with a particle size of less than 0.088mm a.

[0042] Second step, with the described screening material A of 80~90wt%, the maleic acid of 1~5wt%, the zinc oxide powder of 1~5wt%, the copper powder of 1~5wt% and the monohydrate of 1~5wt% Mix citric acid evenly, heat-treat at 100-200°C for 2-5 hours, cool to room temperature, crush, and sieve to obtain sieve material B with a particle size of less than 0.088mm.

[0043] In the third step, 40~50wt% of electric calci...

Embodiment 3

[0046] A carbon ramming material and a preparation method thereof. The steps of the preparation method described in this embodiment are:

[0047] The first step, the coal tar pitch of 70~80wt%, the aluminum stearate of 5~10wt%, the polyphosphoric acid of 1~5wt%, the sodium cetyl alcohol succinate monoester sulfonate of 1~5wt%, 1 ~5wt% aluminum nitrate and 1~5wt% citric acid monohydrate are mixed evenly, heat treated at 100~200°C for 2~5 hours, cooled to room temperature, crushed, and sieved to obtain sieved material with a particle size of less than 0.088mm a.

[0048] Second step, with the described screening material A of 70~80wt%, the maleic acid of 5~10wt%, the zinc oxide powder of 1~5wt%, the copper powder of 1~5wt% and the anhydrous Mix oxalic acid evenly, heat treatment at 100-200°C for 2-5 hours, cool to room temperature, crush, and sieve to obtain sieve material B with a particle size of less than 0.088mm.

[0049] In the third step, 30~40wt% of electric calcined ant...

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Abstract

The invention relates to a carbon ramming material and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing coal tar pitch, stearate, polyphosphoric acid, a surfactant, an additive and a complexing agent, carrying out heat treatment on the obtained mixture at 100-200 DEG C for 2-5 hours, and sequentially cooling, crushing and screening the heat treated mixture to obtain a screened material A with the granularity being less than 0.088 mm; uniformly mixing the screened material A, maleic acid, zinc oxide powder, copper powder and the complexing agent, carrying out heat treatment at 100-200 DEG C for 2-5 hours, and cooling, crushing and screening the obtained heat treated mixture to obtain a screened material B with the granularity being less than 0.088 mm; and uniformly mixing electrically calcined anthracite with the granularity being 1-8 mm, electrically calcined anthracite with the granularity being less than 1 mm, amorphous graphite with the granularity being 1-5 mm, amorphous graphite with the granularity being less than 1 mm, the screened material B, thermoplastic phenolic resin, ethyl acetate and ethylene glycol, and carrying out mixing milling to obtain the carbon ramming material. The preparation method has the advantages of wide sources of raw materials, low production cost and simple production process, and the prepared carbon ramming material has a high heat conduction coefficient.

Description

technical field [0001] The invention belongs to the field of ramming material technology. Specifically relates to a carbon ramming material and a preparation method thereof. Background technique [0002] With the modernization and large-scale development of blast furnaces and the realization of enhanced smelting technology, prolonging the life of blast furnaces has become the main way for iron and steel enterprises to reduce consumption and increase efficiency, and higher requirements are also put forward for blast furnace masonry technology and the masonry materials used. For example, furnace type, furnace capacity, carbon brick structure, and carbon ramming materials matched with carbon bricks. [0003] According to different blast furnace models and different material design requirements, carbon ramming material is mainly used for the gap between the furnace bottom carbon brick and the furnace bottom sealing plate, the gap between the furnace hearth carbon brick and the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/3284C04B2235/407C04B2235/425C04B2235/449C04B2235/9607
Inventor 陈文王周福陈前琬王宇航刘浩王晓菲
Owner 中冶南方邯郸武彭炉衬新材料有限公司
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