Ramming material and preparation method thereof

A technology of ramming materials and raw materials, which is applied in the field of ramming materials and its preparation, can solve the problems of poor low-temperature performance and poisonous ramming materials, etc., and achieve the effect of long storage period

Pending Publication Date: 2021-01-29
冷水江市湘鲁石墨制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a ramming material and its preparation method to solve the technical pro

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0029] The ramming material of the present invention mainly comprises the following raw materials in weight percentage: 37% of silicon carbide, 34% of white coal, 12% of graphite powder, 1% of sulfur powder, 1% of paraffin oil, and 15% of binder.

[0030] Silicon carbide, the mass content of silicon carbide is 90%. Fe in SiC 2 o 3 The mass content is less than 0.5%. The particle size of silicon carbide is between 0.045mm and 6mm.

[0031] White coal, its fixed carbon mass content is 80%. Particle size 0.125 ~ 3mm.

[0032] Graphite powder, the mass content of fixed carbon is 90%. The particle size is 200 mesh to 325 mesh.

[0033] The purity of sulfur powder is above 99.9%. The particle size is 325-600 mesh. The mass percentage of sulfur powder added is 1%, which is especially suitable for the use environment where the temperature is above 16°C.

[0034] The binder is asphalt powder and washing oil, the mass ratio is 1:1.

[0035] In the preparation method of the ram...

Embodiment 2

[0041] The ramming material of the present invention mainly includes the following raw materials in weight percentage: 37% of silicon carbide, 37% of electric calcined white coal, 9% of carbon powder, 3.5% of sulfur powder, 0.5% of paraffin oil, and 13% of binder.

[0042] Silicon carbide, the mass content of silicon carbide is 90%. Fe in SiC 2 o 3 The mass content is less than 0.5%. The particle size of silicon carbide is 0.045-6 mm.

[0043] Electric calcined white coal has a fixed carbon mass content of 80%. Particle size 0.125 ~ 3mm.

[0044] Carbon powder, fixed carbon mass content 95%. The particle size is 200 mesh to 325 mesh.

[0045] The purity of sulfur powder is over 99.9%. The particle size is 325-600 mesh. The added mass percentage of sulfur powder is 3.5%, which is especially suitable for the ambient temperature of 0-40°C, and is used as the overall ramming material for the lining of the mineral wool furnace.

[0046]The binder is tar and washing oil, an...

Embodiment 3

[0056] The ramming material of the present invention mainly comprises the following raw materials in weight percentage: 30% of silicon carbide, 37% of white coal, 10.5% of graphite powder, 6% of sulfur powder, 1.5% of paraffin oil, and 15% of binder.

[0057] Silicon carbide, the mass content of silicon carbide is 90%. Fe in SiC 2 o 3 The mass content is less than 0.5%. The particle size of silicon carbide is 0.045-6mm.

[0058] White coal has a fixed carbon mass content of 92%. Particle size 0.125 ~ 3mm.

[0059] Graphite powder, fixed carbon mass content 99%. The particle size is 200 mesh to 325 mesh.

[0060] The purity of sulfur powder is above 99.9%. The particle size is 325-600 mesh. The added mass percentage of sulfur powder is 6%, which is especially suitable for the ambient temperature of -30-40°C, and can be used as the overall ramming material for the lining of the mineral wool furnace.

[0061] The binder is phenolic resin and washing oil, and the mass rat...

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Abstract

The invention discloses a ramming material and a preparation method thereof. The ramming material mainly comprises the following raw materials by weight: 30-70% of silicon carbide, 25-65% of white coal or electrically calcined white coal, 9-20% of graphite powder or carbon powder, 0.5-8% of sulfur powder, 0.3-2% of paraffin oil, and 13-20% of an adhesive. The preparation method of the ramming material comprises the step of mixing and stirring the raw materials in proportion for more than 40 minutes. The ramming material does not need to be heated and fried during construction operation, is notinfluenced by weather temperature, and can be operated and constructed at the natural environment temperature of -30 DEG C to 40 DEG C. The ramming material has the excellent characteristics of oxidation resistance and acid corrosion resistance, and can be used as a mineral wool furnace lining material and an acid submerged arc furnace lining material. The ramming material disclosed by the invention is relatively long in storage life, the light shielding quality guarantee period is 400 days, and the ramming material is not caked and agglomerated due to the change of climate temperature.

Description

technical field [0001] The invention relates to a ramming material and a preparation method thereof, in particular to an integral ramming material suitable for the lining of a mineral wool furnace and a preparation method thereof. Background technique [0002] At present, the overall ramming material of the mineral wool furnace lining in my country needs to be heated and stirred or fried during the construction process. During the frying process, the smoke emitted will cause serious damage to the human body and waste energy; and it needs to be added The warm paste must be tamped at one time within a certain temperature. Moreover, the current domestic mineral wool lining material is made of mineral wool lining, when the production temperature does not exceed 1650°C and the CaO content of blast furnace slag exceeds 38%, it can be continuously produced for 24 hours, and the service life of the mineral wool lining material Only about 50 days, no more than 70 days. [0003] CN10...

Claims

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Application Information

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IPC IPC(8): C04B35/567C04B35/63
CPCC04B35/565C04B35/66C04B35/6303C04B2235/42C04B2235/422C04B2235/425C04B2235/5427C04B2235/5436C04B2235/77C04B2235/96C04B2235/9684C04B2235/9692
Inventor 朱岳屏
Owner 冷水江市湘鲁石墨制造有限公司
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